ANDATACO INC
10-Q, 1999-09-14
COMPUTER STORAGE DEVICES
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<PAGE>

================================================================================


                      SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C. 20549



                                   FORM 10-Q


[X]   Quarterly Report pursuant to Section 13 or 15 (d) of the Securities and
      Exchange Act of 1934.

      For the quarterly period ended July 31, 1999, OR

[ ]   Transition Report pursuant to Section 13 or 15 (d) of the Securities and
      Exchange Act of 1934.

                 For the Transition Period From ____to ____ .


                        Commission File Number: 0-10370



                                ANDATACO, INC.
                                --------------
            (Exact name of Registrant as specified in its charter)


             MASSACHUSETTS                          04-2511897
             -------------                          ----------
       (State or jurisdiction of                 (I.R.S. Employer
     incorporation or organization)             Identification No.)



                10140 Mesa Rim Rd., San Diego, California 92121
             (Address of principal executive offices and Zip Code)



                                (619) 453-9191
             (Registrant's Telephone Number, including area code)



Indicate by a check mark whether the Registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities and Exchange Act
of 1934 during the preceding 12 months (or for such shorter periods that the
Registrant was required to file such reports), and (2) has been subject to
filing requirements for the past 90 days.   Yes  X   No
                                                ___     ___


As of August 26, 1999, there were 25,432,303 shares of the Registrant's common
stock, $0.01 par value, issued and outstanding.


================================================================================
<PAGE>

Andataco, Inc.

FORM 10-Q INDEX
- --------------------------------------------------------------------------------

<TABLE>
<CAPTION>
                                                                                  Page No.
<S>                                                                               <C>
PART I.  FINANCIAL INFORMATION

         Item 1.   Consolidated Financial Statements

                   Consolidated Balance Sheet at July 31, 1999 (unaudited)
                     and October 31, 1998                                             3

                   Consolidated Statement of Operations (unaudited) for the
                     three-month and nine-month periods ended July 31, 1999
                     and 1998                                                         4

                   Consolidated Statement of Cash Flows (unaudited) for the
                     nine-month period ended July 31, 1999 and 1998                   5

                   Notes to Consolidated Financial Statements (unaudited)             6

          Item 2.  Management's Discussion and Analysis of Financial Condition
                     and Results of Operations                                        8


PART II.  OTHER INFORMATION

          Item 6.  Exhibits and reports on Form 8-K                                  14


                   Signatures
</TABLE>
<PAGE>

Part I: FINANCIAL INFORMATION

Item 1: Consolidated Financial Statements
ANDATACO, INC.

Consolidated Balance Sheet
- -------------------------------------------------------------------------------
<TABLE>
<CAPTION>
                                                                                         July 31,    October 31,
                                                                                           1999         1998
                                                                                       (UNAUDITED)
<S>                                                                                    <C>           <C>
Assets

Current assets:
 Cash ...............................................................................  $    23,000   $    23,000
 Accounts receivable, net ...........................................................    8,004,000    10,628,000
 Inventories ........................................................................    4,945,000     4,923,000
 Other current assets ...............................................................    1,841,000       634,000
                                                                                       -----------   -----------

  Total current assets ..............................................................   14,813,000    16,208,000

Goodwill, net .......................................................................    4,738,000     5,993,000
Property and equipment, net .........................................................    2,665,000     3,415,000
Other assets ........................................................................       60,000        66,000
                                                                                       -----------   -----------
                                                                                       $22,276,000   $25,682,000
                                                                                       ===========   ===========

LIABILITIES AND SHAREHOLDERS' EQUITY

Current liabilities:
 Accounts payable ...................................................................  $ 6,269,000   $ 7,853,000
 Accrued expenses ...................................................................    2,176,000     2,610,000
 Deferred revenue ...................................................................    2,336,000     2,259,000
                                                                                       -----------   -----------
  Total current liabilities ....................................................        10,781,000    12,722,000
                                                                                       -----------   -----------

Long-term liabilities:
 Bank line of credit ............................................................        5,793,000     5,462,000
 Shareholder loan .................................................................      5,196,000     5,196,000
                                                                                       -----------   -----------
  Total long-term liabilities ................................................          10,989,000    10,658,000
                                                                                       -----------   -----------
Shareholders' equity:
 Common stock ................................................................             254,000       238,000
 Additional paid in capital ....................................................        10,669,000    10,107,000
 Accumulated deficit ..........................................................        (10,417,000)   (8,043,000)
                                                                                       -----------   -----------
  Total shareholders' equity ................................................              506,000     2,302,000
                                                                                       -----------   -----------
                                                                                       $22,276,000   $25,682,000
                                                                                       ===========   ===========
</TABLE>

           See notes to unaudited consolidated financial statements.

                                       3
<PAGE>

ANDATACO, INC.

Consolidated Statement of Operations
(Unaudited)
- --------------------------------------------------------------------------------


<TABLE>
<CAPTION>


                                       Three months ended           Nine months ended
                                            July 31,                    July 31,
                                       1999          1998          1999          1998
<S>                                <C>           <C>           <C>           <C>

Sales                              $14,486,000   $17,092,000   $45,856,000    $59,848,000
Cost of sales                       10,381,000    12,733,000    32,756,000     42,033,000
                                   -----------   -----------   -----------    -----------

  Gross profit                       4,105,000     4,359,000    13,100,000     17,815,000
                                   -----------   -----------   -----------    -----------

Operating expenses:
 Selling, general and
  administrative                     4,468,000     5,325,000    13,900,000     17,788,000
 Rent expense to officer                83,000        83,000       249,000        249,000
 Research and development              145,000       568,000       651,000      1,482,000
                                   -----------   -----------   -----------    -----------

  Total operating expenses           4,696,000     5,976,000    14,800,000     19,519,000
                                   -----------   -----------   -----------    -----------

Loss from operations                  (591,000)   (1,617,000)   (1,700,000)    (1,704,000)

Net benefit on settlement of
 litigation                            (72,000)            -       (72,000)             -
Interest expense                       147,000       140,000       395,000        428,000
Interest expense to shareholder        117,000       117,000       351,000        351,000
                                   -----------   -----------   -----------    -----------

Net loss                           $  (783,000)  $(1,874,000)  $(2,374,000)   $(2,483,000)
                                   ===========   ===========   ===========    ===========
Net loss per share (basic
 and diluted)                           $(0.03)       $(0.08)       $(0.10)        $(0.10)
                                   ===========   ===========   ===========    ===========

Shares used in computing
 net loss per share (basic
 and diluted)                       24,099,904    23,819,399    23,913,928     23,819,399
                                   ===========   ===========   ===========    ===========
</TABLE>



           See notes to unaudited consolidated financial statements.

                                       4
<PAGE>

ANDATACO, INC.

Consolidated Statement of Cash Flow
(Unaudited)
- --------------------------------------------------------------------------------

<TABLE>
<CAPTION>
                                                                         Nine Months Ended
                                                                              July 31,
                                                                         1999         1998
<S>                                                                 <C>           <C>
Cash flows from operating activities:
 Net loss                                                           $(2,374,000)  $(2,483,000)
 Adjustments to reconcile net loss to cash
  (used in) provided by operating activities:
   Depreciation                                                       1,234,000     1,237,000
   Amortization of goodwill                                           1,255,000     1,254,000
   Stock compensation                                                    78,000             -
 Changes in assets and liabilities:
  Accounts receivable                                                 2,624,000     2,494,000
  Inventories                                                           (22,000)    2,499,000
  Other assets                                                       (1,201,000)      (27,000)
  Accounts payable                                                   (1,584,000)   (1,091,000)
  Accrued expenses                                                     (434,000)   (1,528,000)
  Deferred revenue                                                       77,000       863,000
                                                                    -----------   -----------

   Net cash (used in) provided by operating activities                 (347,000)    3,218,000
                                                                    -----------   -----------

Cash flows from investing activities:
 Payments for purchases of property and equipment                      (484,000)   (1,298,000)
                                                                    -----------   -----------

   Net cash used in investing activities                               (484,000)   (1,298,000)
                                                                    -----------   -----------

Cash flows from financing activities:
 Borrowings (payments) under bank line of credit agreement (net)        331,000    (1,500,000)
 Proceeds from issuance of common stock                                 500,000             -
 Payments on notes payable                                                    -      (141,000)
                                                                    -----------   -----------

   Net cash provided by (used in) financing activities                  831,000    (1,641,000)

                                                                    -----------   -----------
Net change in cash                                                            -       279,000

Cash at beginning of period                                              23,000        41,000
                                                                    -----------   -----------

Cash at end of period                                               $    23,000   $   320,000
                                                                    ===========   ===========
</TABLE>



           See notes to unaudited consolidated financial statements.

                                       5
<PAGE>

ANDATACO, INC.

Notes to Consolidated Financial Statements
(Unaudited)
- --------------------------------------------------------------------------------

NOTE 1- BASIS OF PRESENTATION

     The preparation of financial statements in conformity with generally
accepted accounting principles requires management to make estimates and
assumptions that affect the reported amounts of assets and liabilities and
disclosure of contingent assets and liabilities at the date of the financial
statements and reported amounts of revenue and expenses during the reporting
period. Actual results could differ from those estimates.

     The accompanying unaudited consolidated financial statements of Andataco,
Inc. ("ANDA", or the "Company") have been prepared by the Company without audit
pursuant to the rules and regulations of the Securities and Exchange Commission
for Form 10-Q. Accordingly, they do not include all of the information and
footnotes required by generally accepted accounting principles for complete
financial statements and should be read in conjunction with the consolidated
financial statements and notes thereto included in the Company's annual report
on Form 10-K for the year ended October 31, 1998. In the opinion of management,
the accompanying unaudited consolidated financial statements contain all
adjustments, consisting of only normal recurring items, necessary for a fair
presentation of the Company's financial position as of July 31, 1999 and its
results of operations for the three-month and nine-month periods ended July 31,
1999 and 1998. The interim financial information contained herein is not
necessarily indicative of the results to be expected for any other interim
period or the full fiscal year ending October 31, 1999.


NOTE 2 - CHANGE IN CONTROL AND BUSINESS COMBINATION

nStor Technologies, Inc.

     On June 8, 1999, nStor Technologies, Inc., a Delaware corporation
("nStor"), purchased (the "Change in Control") 18,021,281 shares of the
Company's common stock, representing approximately 76% of the total issued and
outstanding common stock of the Company from W. David Sykes, President of the
Company ("Sykes"), the Sykes Family Trust and the Sykes Children's Trust.

     As part of the purchase, nStor also acquired from Sykes the subordinated
promissory note (the "Shareholder Note") in the original principal amount of
$5,196,000 payable by the Company to Sykes.

     On July 16, 1999 nStor acquired 1,612,903 shares of newly issued Andataco,
Inc. common stock from the Company for $0.5 million in cash, increasing nStor's
ownership to approximately 77%. On August 5, 1999, the Board of Directors of the
Company approved nStor's proposed acquisition of the remaining Andataco, Inc.
outstanding common stock for an aggregate purchase price of approximately $1.8
million, to be paid with shares of nStor common stock based on the average
closing price for the ten trading days immediately prior to the date of the
respective meetings of the stockholders of both companies. The proposed
acquisition is subject to various conditions, including approval by the
stockholders of both companies. The Company expects the closing to occur in the
fourth quarter of 1999. There can be no assurance, however, that the proposed
acquisition will be consummated.


IPL Systems, Inc.

     On June 3, 1997 (the "Closing Date"), ANDA (formally IPL Systems, Inc.)
completed a business combination with ANDATACO of California, whereby ANDATACO
of California was merged with a wholly-owned subsidiary of ANDA (the "Merger").
Under the terms of the merger agreement, the shareholders of ANDATACO of
California were issued a total of 18,078,381 shares of ANDA Class A Common Stock
in exchange for all outstanding shares of capital stock of ANDATACO of
California. Although as a legal matter the Merger resulted in ANDATACO of
California becoming a wholly-owned subsidiary of ANDA, for financial reporting
purposes the Merger was treated as a recapitalization of ANDATACO of California
and an acquisition of ANDA by ANDATACO of California (reverse acquisition). The
financial reporting requirements of the Securities and Exchange Commission
require that the financial statements reported by ANDA subsequent to the Merger
be those of ANDATACO of California, which include the results of operations of
ANDA from the Closing Date.

                                       6
<PAGE>

ANDATACO, INC.

Notes to Consolidated financial statements (Unaudited)
- --------------------------------------------------------------------------------

The acquisition of ANDA by ANDATACO of California was accounted for using the
purchase method. Accordingly, the purchase price was allocated to the estimated
fair market value of identifiable tangible and intangible assets acquired and
liabilities assumed. Based upon an independent valuation, the Company allocated
$2,400,000 to acquired in-process research and development for which there is no
future alternative use and $400,000 to existing proprietary technology for which
technological feasibility had been established. As required by generally
accepted accounting principles, the amount allocated to in-process research and
development was recorded as a one-time charge to operations and the amount
allocated to existing technology was amortized over its estimated useful life.
The excess of the purchase price over the identifiable net assets acquired of
$8,362,000 was recorded as goodwill and is being amortized on a straight-line
basis over its estimated useful life of five years.


NOTE 3 - NET LOSS PER SHARE

     Basic earnings per share is computed based on the weighted average number
of shares of common stock outstanding during the period. Diluted earnings per
share is computed based on the weighted average number of shares of common stock
outstanding during the period increased by the weighted average number of common
stock equivalents outstanding during the period, using the treasury stock
method. Shares issuable upon exercise of outstanding stock options and warrants,
totaling 1,689,352 and 2,184,428 as of July 31, 1999 and 1998, respectively,
have been excluded from the computation of diluted earnings per share, as their
effect would be anti-dilutive.


NOTE 4 - INVENTORIES

<TABLE>
<CAPTION>

                                                                                            JULY 31,     OCTOBER 31,
                                                                                              1999          1998
                                                                                           ----------    ----------
                                                                                           (unaudited)
<S>                                                                                        <C>           <C>
 Inventories are comprised of the following:
 Purchased components ...................................................................  $4,515,000    $3,900,000
 Work in progress .....................................................................        29,000       280,000
 Finished goods .........................................................................     401,000       743,000
                                                                                           ----------    ----------
                                                                                           $4,945,000    $4,923,000
                                                                                           ==========    ==========
</TABLE>

NOTE 5 - BORROWINGS

      The Company has a revolving line of credit (the "Line of Credit") with a
bank which provides for borrowings based on the lesser of $10 million or: (i)
85% of eligible accounts receivable, as defined, plus (ii) the lesser of $1.75
million or 23% of eligible inventory, as defined. The Line of Credit currently
bears interest at prime plus 0.5 percent (8.5% at July 31, 1999), is guaranteed
by Sykes and matures in December 2002. The Company pays a facility fee of 0.25%
based on the average unused portion of the maximum borrowings. Advances under
the Line of Credit are collateralized by substantially all assets of the
Company. The Line of Credit provides for certain financial covenants, including
maintaining a certain minimum working capital and tangible net worth. During the
second quarter ended April 30, 1999, the Company was not in compliance with the
financial covenant regarding tangible net worth; however, effective July 13,
1999, the lender agreed to waive the default, subject to, among other things,
receipt from nStor of $0.5 million in connection with the sale of the Company's
common stock (Note 2).

                                       7
<PAGE>

ITEM 2:  MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND
         RESULTS OF OPERATIONS

     The following discussion should be read in conjunction with the unaudited
consolidated financial statements included elsewhere within this quarterly
report. Fluctuations in annual and quarterly results may occur as a result of
factors affecting demand for the Company's products such as the timing of the
Company's and competitors' new product introductions and upgrades. Due to such
fluctuations, historical results and percentage relationships are not
necessarily indicative of the operating results for any future period.

     The discussion contained in this report contains forward-looking statements
based on the current expectations of the Company's management. Such statements
are subject to certain risks and uncertainties that could cause actual results
to differ materially from those projected. Factors that could cause or
contribute to such differences include but are not limited to, fluctuations in
the Company's operating results, continued new product introductions by the
Company, market acceptance of the Company's new product introductions, new
product introductions by competitors, technological changes in the computer
storage industry and other factors referred to herein, including but not limited
to, the factors discussed below and in the Company's Annual Report on Form 10-K.
Readers are cautioned not to place undue reliance on these forward-looking
statements which speak only as of the date hereof. The Company undertakes no
obligation to publicly release the result of any revisions to these forward-
looking statements which may be made to reflect events or circumstances
occurring after the date hereof or to reflect the occurrence of unanticipated
events.

Overview

     The Company designs, develops, manufactures, markets and supports high
performance, high availability information storage solutions for the open
systems markets in the Windows NT and UNIX environments including Sun
Microsystems, Inc., Hewlett-Packard Company, Silicon Graphics, Inc., and NT-
based computing systems. The Company's fully integrated hierarchy of data
storage solutions includes fault-tolerant Redundant Array of Independent Disks
("RAID") and RAID-ready disk storage, tape backup and restore products and data
storage management software. The Company also provides technical support and
professional services for its products. The Company distributes internally
developed products and products from other manufacturers through a network of
sales offices worldwide and through distributors in Europe, Asia, Latin America,
Canada and Australia. The customers for the Company's products represent a
variety of industries and government agencies operating in distributed
client/server as well as centralized computing environments. These customers
range in size from FORTUNE 1000 companies to small businesses, and from national
to local governments.

     On June 8, 1999, nStor Technologies, Inc., ("nStor"), purchased 18,021,281
shares of the Company's common stock from W. David Sykes, President of the
Company ("Sykes"), the Sykes Family Trust and the Sykes Children's Trust,
representing approximately 76% of the total issued and outstanding common stock
of the Company.

     As part of the purchase, nStor also acquired from Sykes the subordinated
promissory note (the "Shareholder Note") in the original principal amount of
$5,196,000 payable by the Company to Sykes.

     On July 16, 1999 nStor acquired 1,612,903 shares of newly issued Andataco,
Inc. common stock from the Company for $0.5 million in cash, increasing nStor's
ownership to approximately 77%. On August 5, 1999, the Board of Directors of
the Company approved nStor's proposed acquisition of the remaining Andataco,
Inc. outstanding common stock for an aggregate purchase price of approximately
$1.8 million, to be paid with shares of nStor common stock based on the average
closing price for the ten trading days immediately prior to the date of the
respective meetings of the stockholders of both companies. The proposed
acquisition is subject to various conditions, including approval by the
stockholders of both companies. The Company expects the closing to occur in the
fourth quarter of 1999. There can be no assurance, however, that the proposed
acquisition will be consummated.

                                       8
<PAGE>

RESULTS OF OPERATIONS

     The following table sets forth items in the Company's statement of
operations as a percentage of net sales for the periods presented. The data has
been derived from the unaudited condensed consolidated financial statements.

<TABLE>
<CAPTION>
                                                     THREE MONTHS ENDED          NINE MONTHS ENDED
                                                         JULY 31,                     JULY 31,
                                                     ------------------          -----------------
                                                     1999          1998          1999         1998
                                                     ----          ----          ----         ----
<S>                                               <C>           <C>           <C>          <C>

 Sales .......................................       100.0%        100.0%        100.0%      100.0%
 Cost of sales ...............................        71.7          74.5          71.4        70.2
                                                      ----          ----          ----        ----

 Gross profit ................................        28.3          25.5          28.6        29.8
                                                      ----          ----          ----        ----

 Operating expenses:
  Selling, general and administrative ........        30.8          31.1          30.4        29.7
  Rent expense to shareholder ................         0.6           0.5           0.5         0.4
  Research and development ...................         1.0           3.3           1.4         2.5
                                                      ----           ---           ---         ---
 Total operating expenses ....................        32.4          34.9          32.3        32.6
                                                      ----          ----          ----        ----

 Loss from operations ........................        (4.1)         (9.4)         (3.7)       (2.8)

 Net benefit on settlement of litigation              (0.5)            -          (0.1)          -
 Interest expense ............................         1.8           1.5           1.6         1.3
                                                       ---           ---           ---         ---

 Net loss ....................................        (5.4)%       (10.9)%        (5.2)%      (4.1)%
                                                     =====         =====          ====        ====
</TABLE>

Third Quarter of Fiscal 1999 Compared to Third Quarter of Fiscal 1998

     Sales. Sales for the three months ended July 31, 1999 were $14,486,000, a
decrease of 15.2% from sales of $17,092,000 for the same period in the prior
year. The decrease was partly attributable to a decrease in sales of the
Company's GigaRAID product family. GigaRAID product sales were $6,149,000 in the
third quarter of fiscal 1999 compared to $7,235,000 in the third quarter of
fiscal 1998. This decrease is primarily attributable to the increase in
GigaRAID/AA product revenue not exceeding decreases experienced in other
GigaRAID products, primarily the GigaRAID/FT and GigaRAID/SA. The decrease is
also attributable to lower revenues from the Company's GigaSTOR product line
which decreased $1,217,000 or 24.2% to $3,820,000 in the third quarter of fiscal
1999. This decrease is primarily attributable to the increase in revenues from
GigaSTOR products incorporating LVD technology not outpacing the decrease in
revenues from non-LVD GigaSTOR products.

     Third-party product sales decreased by $586,000, to $3,063,000 in the third
quarter of fiscal 1999 compared to $3,649,000 in the third quarter of fiscal
1998. The decrease in third-party product revenues is consistent with the
Company's transition towards "owned solutions" - strategic technologies designed
in-house to create technical, time-to-market and gross margin advantages.

     Gross Profit. Gross profit in the third quarter of fiscal year 1999 was
$4,105,000, representing approximately 28.3% of revenues, compared to $4,359,000
in the third quarter of fiscal 1998, which represented approximately 25.5% of
revenues. The increase in gross profit as a percentage of sales was due to a
shift in product mix and dynamic market pricing experienced in the quarter. The
Company's GigaRAID product family sales accounted for 42.4% of revenues for the
third quarter of fiscal 1999 compared to 42.3% of revenues in the third quarter
of fiscal 1998. Non-GigaRAID mass storage accounted for 26.4% of revenues for
the third quarter of fiscal 1999 compared to 29.5% of revenues in the third
quarter of fiscal 1998. Distribution products accounted for 21.1% of revenues
for the third quarter of fiscal 1999 compared to 21.3% of revenues in the third
quarter of fiscal 1998. The Company has historically earned higher margins on
revenues from the GigaRAID product family as compared to non-GigaRAID mass
storage products.

                                       9
<PAGE>

     Selling, General and Administrative Expense. Selling, general and
administrative expenses consist primarily of the salaries, commissions and
benefits of sales, marketing and customer support personnel and administrative
and corporate services personnel, as well as consulting, advertising, promotion,
and certain merger related expenses (i.e., goodwill amortization). Selling,
general and administrative expenses were $4,468,000 and $5,325,000 for the
quarters ended July 31, 1999 and 1998, respectively. The decrease in the current
period's selling, general and administrative expenses over such expenses
incurred in the comparable period of the prior fiscal year is due to decreased
compensation-related sales costs resulting from decreased staff and lower sales
volume.

     Research and Development Expense. Research and development expenses consist
primarily of salaries, employee benefits, overhead and outside contractors. Such
expenses were $145,000 and $568,000 for the quarters ended July 31, 1999 and
1998, respectively. The decrease in research and development expenses for the
quarter ended July 31, 1999 as compared to the same quarter in the prior fiscal
year was primarily related to the completion of development of the Hewlett-
Packard SureTape(R) product during the third quarter of fiscal 1998. No further
expenses related to this project were incurred in fiscal year 1999. The Company
will to continue to focus resources on maintenance of in-house products and
differentiating technologies for which it believes there is a need in the
market. However, there can be no assurance that product development programs
invested in by the Company will be successful or that products resulting from
such programs will achieve market acceptance.

First Nine Months of Fiscal 1999 Compared to First Nine Months of Fiscal 1998

     Sales. Sales for the nine months ended July 31, 1999 were $45,856,000, a
decrease of 23.4% from sales of $59,848,000 for the same period in the prior
year. The decrease was primarily attributable to a decrease in sales of third-
party distribution products. Third-party distribution product sales decreased by
$7,539,000, from $8,675,000 in the first nine months of fiscal 1999 compared to
$16,214,000 in the first nine months of fiscal 1998. The decrease in third-party
product sales is consistent with the Company's strategy to focus increased
resources on internally designed products, including the GigaRAID product
family, capable of producing higher margins. The decrease was also attributed to
lower manufactured and distributed GigaRAID and mass storage product sales.
GigaRAID product sales were $21,733,000 in the first nine months of fiscal 1999
compared to $25,831,000 in the first nine months of fiscal 1998. This decrease
is primarily attributable to the increase in GigaRAID/AA product revenue not
exceeding decreases experienced in other GigaRAID products, primarily the
GigaRAID/FT, GigaRAID/SA and GigaRAID/HA. The decrease was also attributable to
a decrease in sales of non-GigaRAID mass storage products including RAID Lite,
RAPID-Tape, JBOD Disk and JBOT Tape. Non-GigaRAID mass storage product sales
were $10,670,000 in the first nine months of fiscal 1999 compared to $14,492,000
in the first nine months of fiscal 1998. These decreases are consistent with the
Company's transition towards "owned solutions" - strategic technologies designed
in-house to create technical, time-to-market and gross margin advantages.

     Gross Profit. Gross profit in the first nine months of fiscal year 1999 was
$13,100,000, representing approximately 28.6% of revenues, compared to
$17,815,000 in the first nine months of fiscal 1998, which represented
approximately 29.8% of revenues. The decrease in gross profit as a percentage of
sales was due primarily to a change in product mix within the GigaRAID product
family and the impact of dynamic market pricing experienced during the nine
months ended July 31, 1999. Distribution GigaRAID products, which have
traditionally earned lower margins than internally designed and manufactured
GigaRAID products, increased 3.0% as a percentage of sales during the first nine
months of fiscal 1999 compared to the same period in the prior fiscal year. The
Company's GigaRAID product family sales accounted for 47.4% of revenues for the
first nine months of fiscal 1999 compared to 43.2% of revenues in the first nine
months of fiscal 1998.

     Selling, General and Administrative Expense. Selling, general and
administrative expenses consist primarily of the salaries, commissions and
benefits of sales, marketing and customer support personnel and administrative
and corporate services personnel, as well as consulting, advertising, promotion,
and certain merger related expenses (i.e., goodwill amortization). Selling,
general and administrative expenses were $13,900,000 and $17,788,000 for the
nine months ended July 31, 1999 and 1998, respectively. The

                                       10
<PAGE>

decrease in the current period's selling, general and administrative expenses
over such expenses incurred in the comparable period of the prior fiscal year is
due to decreased compensation-related sales costs resulting from decreased staff
and lower sales volume.

     Research and Development Expense. Research and development expenses consist
primarily of salaries, employee benefits, overhead and outside contractors. Such
expenses were $651,000 and $1,482,000 for the nine months ended July 31, 1999
and 1998, respectively. The decrease in research and development expenses for
the nine months ended July 31, 1999 as compared to the same period in the prior
fiscal year was primarily related to the completion of development of the
Hewlett-Packard SureTape(c) product during the third quarter of fiscal 1998. No
further expenses related to this project were incurred in fiscal year 1999. The
Company will continue to focus resources on maintenance of in-house products and
differentiating technologies for which it believes there is a need in the
market. However, there can be no assurance that product development programs
invested in by the Company will be successful or that products resulting from
such programs will achieve market acceptance.

     Interest Expense. The decrease in interest expense of $33,000 to $746,000
in the first nine months of fiscal 1999 from $779,000 in the comparable period
in fiscal 1998 is due primarily to the reduction in the outstanding portion of
the Company's bank line of credit.

LIQUIDITY AND CAPITAL RESOURCES

     The Company's cash remained at $23,000 as of July 31, 1999 and as of
October 31, 1998. Net working capital increased $546,000 to $4,032,000 as of
July 31, 1999 from $3,486,000 as of October 31, 1998. During the first nine
months of fiscal 1999, the Company used $347,000 in operating activities and
invested $484,000 in property and equipment and produced $831,000 from net
borrowings with its bank line of credit and proceeds from issuing shares of
common stock.

     The Company currently maintains a credit facility that permits borrowings
of the lesser of $10,000,000 or a percentage of eligible accounts receivable and
inventory ($7,203,000 available at July 31, 1999). As of July 31, 1999, the
Company had $5,793,000 outstanding under this credit line. The credit facility
expires in December 2002; consequently borrowings under this line have been
classified as long-term.

     The Company believes that its projected income and its bank line of credit
will be sufficient to meet the Company's capital and operating requirements for
the next twelve months as presently projected. If sales are less than projected,
or if the Company is unable to generate adequate cash flows from its sales, the
Company may need to seek additional sources of capital and/or decrease its
planned capital and operating expenditures.

     A shareholder loan to the Company's principal shareholder is unsecured, due
in June 2004, with interest payable monthly at 9 percent per annum. This loan is
subordinate to the bank line of credit.

INCOME TAXES

     The Company records a provision (benefit) for income taxes using the
liability method. Current income tax expense or benefit represents the amount of
income taxes expected to be payable or refundable for the current year. A
deferred income tax liability or asset is established for the expected future
consequences resulting from the differences between the financial reporting and
income tax bases of assets and liabilities and from net operating loss and
credit carryforwards. Deferred income tax expense or benefit represents the net
change during the year in the deferred income tax liability or asset. A
valuation allowance is established when necessary to reduce deferred tax assets
to the amounts expected to be more likely than not realized.

YEAR 2000

     Many current computer systems and software products were not designed to
handle any dates beyond the year 1999. As a result, computer systems and/or
software used by many companies may need to be

                                       11
<PAGE>

modified prior to the Year 2000 in order to remain functional. Significant
uncertainty exists in the hardware and software industry concerning the
potential effects associated with such compliance.

     In mid-1997, the Company formed an internal task force to evaluate those
areas of the Company that may be affected by the Year 2000 problem and devised a
plan for the Company to become Year 2000 compliant in a timely manner (the
"Plan"). The Plan focuses on three major areas: the Company's mission critical
business transaction systems; the products the Company sells; and the issues
associated with its business partners, including suppliers, customers and
bankers.

     Costs incurred directly related to the Year 2000 problem are expensed by
the Company during the period in which they are incurred. The Company has
incurred to date no incremental material costs associated with its efforts to
become Year 2000 compliant, as a majority of the costs have occurred as a result
of normal upgrade procedures. Costs incurred relating to the Year 2000 issue
include the time spent by employees reviewing and addressing Year 2000 risks and
amounted to $20,000 in fiscal 1998 and $10,000 for the first nine months of
fiscal 1999.

     Based on current information, the Company does not expect future costs to
address Year 2000 risks to be material. However, there can be no assurances that
there will not be interruptions or other limitations of financial or operating
systems or that the Company will not incur significant costs to avoid such
interruptions or limitations. The Company's expectations about future costs
associated with the Year 2000 problem are subject to uncertainties that could
cause actual results to have a greater financial impact than currently
anticipated. Factors that could influence the amount and timing of future costs
include but are not limited to the success of the Company's suppliers in
completing their respective plan of action for Year 2000 compliance.

 Mission Critical Business Transaction Systems

     The Company has completed a review of its critical business transaction
systems, and its Year 2000 compliance related to business transaction systems is
as follows:

     All of the Company's systems for processing business transactions are Year
2000 compliant and the Company expects that these systems will correctly process
transactions prior to and following 12:00 am January 1, 2000. This compliance
extends to the underlying hardware, operating systems, and other software on
which the Company's business systems operate. This compliance includes the
following transactions and related printed documents: accepting orders from
customers, fulfilling customer orders, invoicing customers, crediting customer
accounts, applying customer payments, refunding customers, placing orders with
vendors, receiving vendor shipments, processing vendor invoices and paying
vendors.

     The Company is in the process of evaluating certain ancillary PC office
applications (e.g. word processing, spreadsheets, e-mail etc.) and specialized
PC applications including art, drawing and other creative department
applications, hardware design and other engineering department applications,
software development systems, bank account management, fixed asset management,
and stock option database management. This effort will continue through 1999 and
is expected to be completed by the end of the calendar year 1999.

 Products the Company Sells

     The Company has also completed a review of all significant products the
Company sells for Year 2000 compliance. All significant products that the
Company currently sells are Year 2000 compliant and the Company believes these
products will not produce date errors in changing from the year 1999 to 2000.
Any products the Company intends to sell in the future will be reviewed for Year
2000 compliance. The functionality of all of these products, however, are
dependent on the software compliance of the underlying operating systems.

                                       12
<PAGE>

 The Company's Business Partners

     The Company's suppliers (particularly sole-source and long lead-time
suppliers), key customers and other key business partners (e.g. bankers) may be
adversely affected by their respective failure to address the Year 2000 problem.
Should any of the Company's suppliers encounter Year 2000 problems that cause
them to delay manufacturing or shipments of key components to the Company, the
Company may be forced to delay or cancel shipments of its products, which could
have a material adverse effect on the Company's results of operations. Any
inability of the Company's key customers to become Year 2000 compliant which
would cause them to delay or cancel substantial purchase orders or delivery of
the Company's products could also have a material adverse effect on the
Company's results of operations. Additionally, any inability of the Company's
other key business partners, including the Company's bank, to become Year 2000
compliant could cause them to become unable to provide critical business
services, such as to provide funding on the Company's line of credit, and could
therefore also have a material adverse effect on the Company.

     The Company does not rely on any one significant customer (i.e.
representing greater than 10% of total revenue). However, it is unknown how
customer spending patterns may be impacted by Year 2000 programs. As customers
focus on preparing their businesses for the Year 2000 in the near term, capital
budgets may be spent on remediation efforts, potentially delaying the purchase
and implementation of new systems, thereby creating less demand for the
Company's products and services. This could adversely affect the Company's
business. Conversely, demand for the Company's products could accelerate as
customers focus on the need to protect their stored data by enhancing their
capabilities.

     The Company has contacted all identified key vendors and business partners
and obtained either a statement of Year 2000 compliance or a status report on
the progress achieved to date on execution of their respective Year 2000 Plan.
Based on this review, the Company is satisfied that all identified key vendors
and business partners have satisfactorily addressed their Year 2000 issues with
a plan of action as applicable and are, or will be, Year 2000 compliant by the
end of the third calendar quarter of 1999. However, there can be no assurance
that the representations made to the Company by third parties are accurate or
complete and there is a possibility that normal business operations could be
disrupted.

                                       13
<PAGE>

PART II - OTHER INFORMATION


ITEM 6:   EXHIBITS AND REPORTS ON FORM 8-K.
          ---------------------------------

     (a)  Exhibits

          2.1    Agreement and Plan of Merger dated as of August 27, 1999, by
                 and among nStor Technologies, Inc., NTI Acquisition Corp. and
                 Andataco, Inc.

          10.1   Amendment No.4 to Loan Agreement dated as of July 13, 1999
                 between Wells Fargo Bank and the Company.

          10.2   Subordination Agreement dated July 13, 1999 between ANDATACO of
                 California, Inc., nStor Technologies, Inc. and Wells Fargo
                 Credit.

          27.1   Financial Data Schedule


     (b)  Reports on Form 8-K

          Report on Form 8-K dated June 8, 1999, containing information related
          to nStor Technologies, Inc.'s acquisition of 76% of Andataco, Inc.'s
          common stock.

                                       14
<PAGE>

SIGNATURES

Pursuant to the requirements of the Securities and Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned thereunto duly authorized.

                                        ANDATACO, INC.


          Date: September 14, 1999      By: /s/ Harris Ravine
                                            -----------------------------------
                                            Harris Ravine
                                            Chief Executive Officer
                                            (on behalf of registrant and as its
                                             principal executive officer)


          Date: September 14, 1999      By: /s/ Diane Wong
                                            -----------------------------------
                                             Diane Wong
                                             Vice President of Finance and
                                             Corporate Controller
                                             (on behalf of registrant and as its
                                              principal financial officer)



                                       15

<PAGE>

                                                                     EXHIBIT 2.1
                         AGREEMENT AND PLAN OF MERGER

                                     AMONG

                           NSTOR TECHNOLOGIES, INC.,

                             NTI ACQUISITION CORP.

                                      AND

                                ANDATACO, INC.

                          DATED AS OF AUGUST 27, 1999
<PAGE>

<TABLE>
<CAPTION>



                                                 TABLE OF CONTENTS

                                                                                                               PAGE
<S>                                                                                                              <C>
ARTICLE I

         DEFINITIONS..............................................................................................1
                  1.1      Definitions............................................................................1

ARTICLE II

         THE MERGER...............................................................................................2
                  2.1      Merger.................................................................................2
                  2.2      Closing................................................................................2
                  2.3      Articles of Organization and Bylaws of Surviving Corporation...........................2
                  2.4      Directors and Officers.................................................................2

ARTICLE III

         CONVERSION OR CANCELLATION OF THE COMPANY'S COMMON STOCK ................................................3
                  3.1      Conversion and Cancellation of The Company's Capital Stock.............................3
                  3.2      Dissenting Shares/Rights of Appraisal..................................................4
                  3.3      Exchange of Certificates...............................................................4
                                    (a)     Exchange Agent........................................................4
                                    (b)     Exchange Procedures...................................................5
                                    (c)     Distributions with Respect to Unexchanged
                                            Shares of nStor Common Stock..........................................5
                                    (d)     Fractional Shares.....................................................6
                                    (e)     Termination of Exchange Fund..........................................6
                                    (f)     No Liability..........................................................6
                                    (g)     Withholding Rights....................................................6
                                    (h)     Lost Certificates.....................................................6
                  3.4      No Further Rights......................................................................6
                  3.5      Closing of the Company's Transfer Books................................................7
                  3.6      Stock Options and Warrants.............................................................7
                  3.7      Tax Consequences.......................................................................7

ARTICLE IV

         REPRESENTATIONS AND WARRANTIES OF THE COMPANY ...........................................................8
                  4.1      Organization, Standing, etc. of the Company............................................8
                  4.2      Authorization and Execution............................................................8

</TABLE>

                                      A-2
<PAGE>

<TABLE>
<CAPTION>

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<S>                                                                                                              <C>
                  4.3      Capitalization.........................................................................8
                  4.4      SEC Reports and Financial Statements...................................................9
                  4.5      No Broker's or Finder's Fees...........................................................9
                  4.6      Opinion of Financial Advisor...........................................................9
                  4.7      Information Supplied...................................................................9

ARTICLE V

         REPRESENTATIONS AND WARRANTIES
         OF NSTOR AND THE NSTOR SUBSIDIARY.......................................................................10
                  5.1      Organization, Standing, etc., of nStor................................................10
                  5.2      Organization, Standing, etc., of nStor Subsidiary.....................................10
                  5.3      Authorization and Execution...........................................................10
                  5.4      Capitalization........................................................................11
                  5.5      SEC Reports and Financial Statements..................................................11
                  5.6      No Broker's or Finder's Fees..........................................................12
                  5.7      Information Supplied..................................................................12

ARTICLE VI

         COVENANTS OF THE COMPANY................................................................................12
                  6.1      Investigations........................................................................13
                  6.2      Operation of the Company..............................................................13
                  6.3      No Solicitation.......................................................................15
                  6.4      Board Approval, Fairness Opinion, Shareholder
                           Approval and Proxy Statement..........................................................17
                  6.5      Financial Statements and Reports......................................................18
                  6.6      Notice and Cure.......................................................................18
                  6.7      Best Efforts and Consents.............................................................18
                  6.8      Agreements and Covenants..............................................................19

ARTICLE VII

         COVENANTS OF NSTOR AND THE NSTOR SUBSIDIARY ............................................................19
                  7.1      Investigations........................................................................19
                  7.2      Conduct of Business of the nStor Subsidiary...........................................19
                  7.3      Operation of nStor....................................................................19
                  7.4      Obligation of nStor to Make Merger Effective and
                           The nStor Subsidiary's Shareholder Consent............................................19
                  7.5      Notice and Cure.......................................................................20
                  7.6      Best Efforts and Consents.............................................................20
                  7.7      Information for Proxy Statement for the Company's Shareholders........................20
                  7.8      Board Approval, Shareholder Approval, Proxy
                           Statement and Registration Statement..................................................20
</TABLE>

                                      A-3
<PAGE>

<TABLE>
<CAPTION>

                                                                                                               PAGE
<S>                                                                                                              <C>
                  7.9      Financial Statements and Reports......................................................21
                  7.10     Agreements and Covenants..............................................................21

ARTICLE VIII

         CONDITIONS..............................................................................................21
                  8.1      General Conditions....................................................................21
                                    (a)     Shareholder Approval.................................................21
                                    (b)     No Violations or Proceedings.........................................21
                                    (c)     Registration Statement...............................................22
                                    (d)     Amex Listing.........................................................22
                                    (e)     Approvals of Tribunals and Other Persons.............................22
                  8.2      Conditions to the Obligation of nStor and The nStor Subsidiary........................22
                                    (a)     Representations and Warranties True and Correct......................22
                                    (b)     Satisfaction of Obligations..........................................22
                                    (c)     Opinion of Counsel...................................................22
                  8.3      Conditions to Obligations of The Company..............................................22
                                    (a)     Representations and Warranties.......................................23
                                    (b)     Satisfaction of Obligations..........................................23
                                    (c)     Opinion of Counsel...................................................23
                                    (d)     Fairness Opinion.....................................................23
                                    (e)     nStor Stock Options..................................................23

ARTICLE IX

         TERMINATION; PAYMENT OF EXPENSES........................................................................23
                  9.1      Termination of Agreement and Abandonment of Merger....................................23
                                    (a)     Mutual Consent.......................................................23
                                    (b)     nStor or the Company.................................................23
                                    (c)     nStor or the nStor Subsidiary........................................24
                                    (d)     Company..............................................................24
                  9.2      Effect of Termination.................................................................24
                  9.3      Amendment.............................................................................24
                  9.4      Extension; Waiver.....................................................................24
                  9.5      Fees and Expenses.....................................................................25

ARTICLE X

         FURTHER COVENANTS.......................................................................................25
                  10.1     nStor to Cause nStor Subsidiary and Surviving
                           Corporation To Perform................................................................25
                  10.2     Indemnification and Insurance of Company Officers and Directors.......................25

</TABLE>

                                      A-4
<PAGE>

<TABLE>
<CAPTION>

                                                                                                               PAGE
<S>                                                                                                              <C>
                  10.3     Binding Effects.......................................................................26

ARTICLE XI

         GENERAL.................................................................................................27
                  11.1     Release of Information................................................................27
                  11.2     Notices...............................................................................27
                  11.3     Successors and Assigns................................................................28
                  11.4     Further Assurances....................................................................28
                  11.5     Specific Performance..................................................................28
                  11.6     Severability..........................................................................29
                  11.7     Entire Agreement......................................................................29
                  11.8     Governing Law.........................................................................29
                  11.9     Certain Construction Rules............................................................29
                  11.10    Survival of Covenants, Representations and Warranties.................................29
                  11.11    Counterparts..........................................................................29

</TABLE>

                                      A-5
<PAGE>

                         AGREEMENT AND PLAN OF MERGER

    AGREEMENT AND PLAN OF MERGER (the "AGREEMENT"), dated as of August 27,
1999, among nStor Technologies, Inc., a Delaware corporation ("nSTOR"), NTI
Acquisition Corp., a Florida corporation and a wholly owned subsidiary of nStor
(the "nSTOR SUBSIDIARY"), and Andataco, Inc., a Massachusetts corporation (the
"COMPANY").

                                   RECITALS:

    A.  The respective Boards of Directors of nStor, the nStor Subsidiary
and the Company have each approved the merger of the nStor Subsidiary into the
Company (the "MERGER"), whereby (other than shares of Company Common Stock (as
hereinafter defined) owned directly or indirectly by nStor and Dissenting Shares
(as defined in SECTION 3.2)), each outstanding share of the Class A Common
Stock, par value $.01 per share, of the Company (the "COMPANY COMMON STOCK"),
will be converted into the right to receive the Merger Consideration (as
hereinafter defined), all upon the terms and subject to the conditions set forth
in this Agreement. The Board of Directors of the Company has adopted resolutions
recommending that the Company's shareholders approve the Merger.

    B.  nStor, the nStor Subsidiary and the Company desire to make certain
representations, warranties, covenants and agreements in connection with the
Merger and also to prescribe various conditions to the Merger.

    C.  nStor beneficially owns approximately 77% of the outstanding Company
Common Stock.

    NOW, THEREFORE, in consideration of the mutual agreements,
representations and warranties contained herein, and subject to the conditions
contained herein, the parties hereto hereby agree as follows:


                                   ARTICLE I

                                  DEFINITIONS

    1.1   Definitions.   As used in this Agreement, the terms set forth in
SCHEDULE 1.1 shall have the respective meanings set forth therein.

                                      A-6
<PAGE>

                                  ARTICLE II

                                  THE MERGER

    2.1   Merger.   Subject to the terms and conditions of this Agreement, at
the Effective Time (as hereinafter defined), in accordance with this Agreement,
the Massachusetts Business Corporation Law (the "MBCL") and the Florida Business
Corporation Act (the "FBCA"), the nStor Subsidiary shall merge with and into the
Company and the separate existence and corporate organization of the nStor
Subsidiary (except as may be continued by operation of law) shall cease and the
Company shall survive the Merger as the surviving corporation (the "SURVIVING
CORPORATION"). The Surviving Corporation shall succeed to and possess all of the
estates, properties (real, personal and mixed) rights, privileges, powers,
franchises, immunities, purposes, and all and every other interest of, or
belonging to, the Company or the nStor Subsidiary, all without further act or
deed; and the Surviving Corporation shall be subject to all the debts,
liabilities, obligations, restrictions, disabilities, penalties and duties of
the Company and the nStor Subsidiary, all without further act or deed. nStor
shall not assume any debts, liabilities, obligations, restrictions,
disabilities, penalties or duties of the Company, the nStor Subsidiary or the
Surviving Corporation.

    2.2   Closing.   The Closing of the Merger (the "CLOSING") shall take
place at the offices of Akerman, Senterfitt & Eidson, P.A., 450 East Las Olas
Blvd., Ft. Lauderdale, Florida 33301, at 10:00 a.m., Ft. Lauderdale, Florida, on
a date to be specified by nStor or the nStor Subsidiary, which shall be no later
than the third business day after satisfaction of the last to occur of the
conditions set forth in ARTICLE VIII, or at such other time and place or on such
other date as nStor and the Company may agree. On the Closing Date, (i) Articles
of Merger (which shall be completed as appropriate to reflect the terms of this
Agreement) shall be executed, delivered, filed and recorded in accordance with
the MBCL, and (ii) Articles of Merger (which shall be completed as appropriate
to reflect the terms of this Agreement) shall be executed, delivered, filed and
recorded in accordance with the FBCA, unless otherwise agreed by the parties in
writing. The Merger shall become effective when such Articles of Merger are duly
filed with the Secretary of State of the State of Florida and the Secretary of
the Commonwealth of Massachusetts, or at such other time as the nStor Subsidiary
and the Company shall agree should be specified in the Articles of Merger (the
time the Merger becomes effective being hereinafter referred to as the
"EFFECTIVE TIME").

    2.3   Articles of Organization and Bylaws of Surviving Corporation.   From
and after the Effective Time, the Articles of Organization, as amended, of the
Company immediately prior to the Effective Time, shall be the Articles of
Organization of the Surviving Corporation, until further amended in accordance
with the MBCL. From and after the Effective Time, the Bylaws, as amended, of the
Company immediately prior to the Effective Time, shall be the Bylaws of the
Surviving Corporation, until further amended in accordance with the MBCL.

    2.4   Directors and Officers.   The directors of nStor Subsidiary
immediately prior to the Effective Time shall be the directors of the Surviving
Corporation, with each to serve as such until his or her respective successor is
duly elected and qualified in the manner provided in the Articles

                                      A-7
<PAGE>

of Organization and Bylaws of the Surviving Corporation, or his or her earlier
death, resignation or removal. The officers of the Company immediately prior to
the Effective Time shall be the officers of the Surviving Corporation, with each
to serve as such until his or her respective successor is duly elected and
qualified in the manner provided in the Articles of Organization and Bylaws of
the Surviving Corporation, or his or her earlier death, resignation or removal.


                                  ARTICLE III

           CONVERSION OR CANCELLATION OF THE COMPANY'S COMMON STOCK

    3.1   Conversion and Cancellation of The Company's Capital Stock.   Subject
to the terms and conditions of this Agreement, at the Effective Time, by virtue
of the Merger and without any action on the part of the nStor Subsidiary, the
Company or the holder of any of the following securities:

          (a)  Each share of the Company Common Stock issued and
outstanding immediately prior to the Effective Time, other than Dissenting
Shares and shares canceled in accordance with SECTION 3.1(c), shall be converted
into and represent the right to receive, without interest, that number of shares
of common stock, par value $0.50 per share, of nStor ("NSTOR COMMON STOCK")
obtained by dividing Thirty One Cents ($0.31) by the average closing price
("AVERAGE PRICE") of a share of nStor Common Stock on The American Stock
Exchange ("AMEX") for the ten (10) trading days immediately prior to the date of
the Company Special Meeting (the "EXCHANGE RATIO"); provided, however, that if
between the date of this Agreement and the Effective Time the outstanding shares
of Company Common Stock or nStor Common Stock shall have been changed into a
different number of shares or a different class, by reason of any stock
dividend, subdivision, reclassification, recapitalization, split, combination or
exchange of shares, the Exchange Ratio shall be correspondingly adjusted to
reflect such stock dividend, subdivision, reclassification, recapitalization,
split, combination or exchange of shares. Nothing stated in the immediately
preceding sentence shall be construed as providing the holders of Company Common
Stock any preemptive or antidilutive rights other than in the case of a stock
dividend, subdivision, reclassification, recapitalization, split, combination or
exchange of shares, and there shall be no adjustment to the Exchange Ratio in
the event that nStor issues or agrees to issue any shares of nStor Common Stock
between the date hereof and the Effective Time, whether for cash, through option
grants, option or warrant exercises, in acquisitions, or in other transactions.
At the Effective Time, all shares of Company Common Stock issued and outstanding
immediately prior thereto shall no longer be outstanding and shall automatically
be canceled and retired and shall cease to exist, and each certificate
previously evidencing any such shares shall thereafter represent the right to
receive, upon the surrender of such certificate in accordance with the
provisions of SECTION 3.3(b), certificates evidencing such number of whole
shares of nStor Common Stock into which such Company Common Stock was converted
in accordance with the Exchange Ratio and any cash in lieu of fractional shares
of nStor Common Stock paid in consideration therefor pursuant to SECTION 3.3(d).

                                      A-8
<PAGE>

          (b)  At the Effective Time, each share of Company Common Stock,
if any, held in the Company's treasury and each share of the Company Common
Stock owned by the nStor Subsidiary, nStor or any direct or indirect wholly
owned subsidiary of either of them at the Effective Time shall be canceled and
retired without payment of any consideration therefor and shall cease to exist.

          (c)  Each share of common stock of the nStor Subsidiary issued
and outstanding immediately prior to the Effective Time shall be converted into
and become one (1) fully paid and nonassessable share of Common Stock, par value
$.01 per share, of the Surviving Corporation.

    3.2   Dissenting Shares/Rights of Appraisal.

          (a)  Shares of Company Common Stock held by each shareholder
who has not voted such shares in favor of the Merger as to which appraisal shall
have been duly demanded and perfected in accordance with Section 86 of the MBCL
and Section 1300 of the California Corporations Code (the "CCC") where the
holder thereof has not effectively withdrawn or forfeited such right to such
appraisal ("DISSENTING SHARES") shall not be converted into, represent the right
to receive, or be exchangeable for the Merger Consideration due with respect to
such class of Capital Stock, unless such holder shall have forfeited such
holder's right to appraisal under the MBCL or the CCC or withdrawn, with the
consent of the Company, such holder's demand for appraisal. If such holder has
forfeited or withdrawn such holder's right to appraisal of Dissenting Shares,
then, as of the Effective Time, or the occurrence of such event, whichever last
occurs, such holder's Dissenting Shares shall cease to be Dissenting Shares and
shall be converted into and represent the right to receive, and be exchangeable
for, the Merger Consideration due with respect to such class of Capital Stock.

          (b)  The Company shall give nStor (i) prompt written notice of
any written demands for appraisal of any shares of Capital Stock of the Company,
withdrawals of such demands, and any other instruments served pursuant to the
MBCL or CCC and received by the Company and (ii) the opportunity to direct and
control all negotiations and proceedings with respect to demands for appraisal
under the MBCL or CCC. The Company shall not, except with the prior written
consent of nStor, make any payment with respect to any demands for appraisal of
Capital Stock of the Company or settle or offer to settle any such demands.

    3.3   Exchange of Certificates.

          (a)   Exchange Agent.   nStor shall deposit, or shall cause to be
deposited, with a bank, trust company or other entity as may be designated by
nStor and reasonably satisfactory to the Company (the "EXCHANGE AGENT"), for the
benefit of the holders of shares of Company Common Stock, for exchange in
accordance with this SECTION 3, through the Exchange Agent, at the Effective
Time, (i) certificates evidencing the shares of nStor Common Stock issuable
pursuant to SECTION 3.1 in exchange for outstanding shares of Company Common
Stock (including

                                      A-9
<PAGE>

Company Common Stock issued upon exercise or conversion, as applicable, of
Options and Warrants prior to the Effective Time as set forth in SECTION 3.6)
and (ii) upon the request of the Exchange Agent, cash in an amount sufficient to
make any cash payment in lieu of fractional shares of nStor Common Stock
pursuant to SECTION 3.3(d) (such certificates for shares of nStor Common Stock,
together with any dividends or distributions with respect thereto, and cash in
lieu of fractional shares of nStor Common Stock being hereafter collectively
referred to as the "EXCHANGE FUND"). The Exchange Agent shall, pursuant to
irrevocable instructions, deliver the nStor Common Stock contemplated to be
issued pursuant to SECTION 3.1 out of the Exchange Fund to holders of shares of
Company Common Stock. Except as contemplated by SECTION 3.3(e) hereof, the
Exchange Fund shall not be used for any other purpose. Any interest, dividends
or other income earned on the investment of cash or other property held in the
Exchange Fund shall be for the account of nStor.

          (b)   Exchange Procedures.   nStor shall instruct the Exchange
Agent to mail, within five (5) business days after the Effective Time, to each
holder of record of a certificate or certificates which immediately prior to the
Effective Time evidenced outstanding shares of Company Common Stock (the
"CERTIFICATES") (i) a letter of transmittal (which shall specify that delivery
shall be effected, and risk of loss and title to the Certificates shall pass,
only upon proper delivery of the Certificates to the Exchange Agent and shall be
in such form and have such other provisions as nStor may reasonably specify) and
(ii) instructions to effect the surrender of the Certificates in exchange for
the certificates evidencing shares of nStor Common Stock and cash (if any). Upon
surrender of a Certificate for cancellation to the Exchange Agent together with
such letter of transmittal, duly executed, and such other customary documents as
may be required pursuant to such instructions, the holder of such Certificate
shall be entitled to receive in exchange therefor (A) certificates evidencing
that number of whole shares of nStor Common Stock that such holder has the right
to receive in accordance with the Exchange Ratio in respect of the shares of
Company Common Stock formerly evidenced by such Certificate, (B) any dividends
or other distributions to which such holder is entitled pursuant to SECTION
3.3(c), and (C) cash in lieu of fractional shares of nStor Common Stock to which
such holder is entitled pursuant to SECTION 3.3(d) (the shares of nStor Common
Stock, and the dividends, distributions and cash described in clauses (A), (B)
and (C) being, collectively, the "MERGER CONSIDERATION"), and the Certificate so
surrendered shall forthwith be canceled. In the event of a transfer of ownership
of shares of Company Common Stock that is not registered in the transfer records
of the Company, Merger Consideration may be issued and paid in accordance with
this ARTICLE III to a transferee if the Certificate evidencing such shares of
Company Common Stock is presented to the Exchange Agent, accompanied by all
documents required to evidence and effect such transfer and by evidence that any
applicable stock transfer taxes have been paid or by the transferee requesting
such payment paying to the Exchange Agent any such transfer tax. Until
surrendered as contemplated by this SECTION 3.3, each Certificate shall be
deemed at any time after the Effective Time to evidence only the right to
receive upon such surrender the Merger Consideration.

          (c)   Distributions with Respect to Unexchanged Shares of nStor
Common Stock.   No dividends or other distributions declared or made after the
Effective Time with respect to nStor

                                      A-10
<PAGE>

Common Stock with a record date after the Effective Time shall be paid to the
holder of any unsurrendered Certificate with respect to the shares of nStor
Common Stock represented thereby and no cash payment in lieu of fractional
shares of nStor Common Stock shall be paid to any such holder pursuant to
SECTION 3.3(d), until the holder of such Certificate shall surrender such
Certificate. Upon such surrender, there shall be paid to the Person in whose
name the certificates representing the shares of nStor Common Stock into which
such Certificates were converted and registered, all dividends and other
distributions payable in respect of such nStor Common Stock on a date after, and
in respect of a record date after, the Effective Time.

          (d)   Fractional Shares.   No fraction of a share of nStor Common
Stock shall be issued in the Merger and any such fractional share interest shall
not entitle the owner thereof to vote or to any other rights of a stockholder of
nStor. In lieu of any such fractional shares, each holder of Company Common
Stock upon surrender of a Certificate for exchange pursuant to this SECTION 3.3
shall be paid an amount in cash (without interest), rounded to the nearest cent,
determined by multiplying (i) the Average Price by (ii) the fractional interest
to which such holder would otherwise be entitled (after taking into account all
shares of Company Common Stock then held of record by such holder).

          (e)   Termination of Exchange Fund.   Any portion of the Exchange
Fund that remains undistributed to the holders of Company Common Stock for six
(6) months after the Effective Time shall be delivered to nStor, upon demand,
and any holders of Company Common Stock who have not theretofore complied with
this ARTICLE III shall thereafter look only to nStor for the Merger
Consideration to which they are entitled pursuant to this ARTICLE III.

          (f)   No Liability.   Neither nStor nor the Company shall be
liable to any holder of shares of Company Common Stock for any such shares of
nStor Common Stock (or dividends or distributions with respect thereto) from the
Exchange Fund delivered to a public official pursuant to any applicable
abandoned property, escheat or similar law.

          (g)   Withholding Rights.   nStor or the Exchange Agent shall be
entitled to deduct and withhold from the Merger Consideration otherwise payable
pursuant to this Agreement to any holder of shares of Company Common Stock such
amounts as nStor or the Exchange Agent is required to deduct and withhold with
respect to the making of such payment under the Code or any provision of state,
local or foreign tax law. To the extent that amounts are so withheld by nStor or
the Exchange Agent, such withheld amounts shall be treated for all purposes of
this Agreement as having been paid to the holder of the shares of Company Common
Stock in respect of which such deduction and withholding was made by nStor or
the Exchange Agent.

          (h)   Lost Certificates.   If any Certificate shall have been
lost, stolen or destroyed, upon the making of an affidavit of that fact by the
Person claiming such Certificate to be lost, stolen or destroyed and, if
required by the Surviving Corporation, the posting by such Person of a bond in
such reasonable amount as the Surviving Corporation may direct as indemnity
against any claim that may be made against it with respect to such Certificate,
the Exchange Agent will issue in exchange

                                      A-11
<PAGE>

for such lost, stolen or destroyed Certificate the shares of nStor Common Stock,
any cash in lieu of fractional shares and any unpaid dividends and distributions
on shares of nStor Common Stock deliverable in respect thereof, pursuant to this
Agreement.

    3.4   No Further Rights.   From and after the Effective Time, holders of
Certificates shall cease to have any rights as shareholders of the Company,
except the right to receive the Merger Consideration as provided herein or in
the case of Dissenting Shares, as may be provided by applicable law.

    3.5   Closing of the Company's Transfer Books.   At the Effective Time, the
stock transfer books of the Company shall be closed and no transfer of the
Company Common Stock shall thereafter be made. If, after the Effective Time,
Certificates are presented to the Surviving Corporation or the Exchange Agent,
they shall be canceled and exchanged for the Merger Consideration, as provided
in this ARTICLE III, subject to applicable law in the case of Dissenting Shares.

    3.6   Stock Options and Warrants.

          (a)  The Company will (i) terminate, to the extent permitted by
the terms thereof, the Company's 1991/1993 Consolidated Equity Plan, 1996
Consolidated Equity Plan and 1997 Equity Incentive Plan, as amended
(collectively, the "COMPANY OPTION PLANS"), immediately before the Effective
Time, without prejudice to the rights of the holders of outstanding Options
issued pursuant to the Company Option Plans, (ii) grant no additional Options
after the date of this Agreement under the Company Option Plans and (iii) grant
no other options, warrants, rights, convertible securities or other agreements
or commitments pursuant to which the Company is required to issue any shares of
Capital Stock or any securities convertible into or exchangeable for Capital
Stock.

          (b)  The Company shall provide written notice to all holders of
outstanding Options issued pursuant to the Company Option Plans in accordance
with the terms of the respective Company Option Plan that, at the option
holder's election, the vesting period for any outstanding Options shall be
accelerated and all such Options shall be deemed to be vested immediately prior
to the Effective Time and holders of outstanding Options shall have the right to
exercise their Options prior to the Effective Time in accordance with the
respective terms and conditions of the Company Option Plans; provided, however,
that any outstanding Options which are not exercised prior to the Effective Time
shall terminate and the holders thereof shall have no rights with respect
thereto following the Effective Time other than as set forth in this SECTION
3.6(b).

          (c)  At its sole and absolute discretion, nStor may issue
options to continuing employees of the Company, pursuant to nStor's 1996 Stock
Option Plan, as amended ("the nStor Option Plan"), on such terms and conditions
as the administrators of the nStor Option Plan may deem appropriate.

                                      A-12
<PAGE>

    3.7   Tax Consequences.   The Merger will be a taxable transaction for
federal income tax purposes. Neither nStor, nStor Subsidiaries, nor the Company
shall take a position on any tax return inconsistent with this Section 3.7.


                                  ARTICLE IV

                 REPRESENTATIONS AND WARRANTIES OF THE COMPANY

    The Company hereby represents and warrants to nStor and the nStor
Subsidiary as follows:

    4.1   Organization, Standing, etc. of the Company.   The Company is a
corporation duly organized, validly existing, and in good standing under the
laws of the Commonwealth of Massachusetts, has all requisite corporate power and
authority to own its assets and to carry on its business as presently conducted.

    4.2   Authorization and Execution.   The Company has all requisite
corporate power and authority to enter into this Agreement and, subject to the
adoption and approval of this Agreement and the Merger by the holders of a
majority of the shares of Company Common Stock outstanding on the record date
for the Company Special Meeting (as defined herein), to consummate the
transactions contemplated by this Agreement. The execution and delivery of this
Agreement and, subject to obtaining the requisite approval of the holders of a
majority of the shares of Company Common Stock outstanding on the record date
for the Company Special Meeting, the performance by the Company of this
Agreement, the Merger and the transactions contemplated hereby have been duly
authorized by all necessary corporate action on the part of the Company. The
Board of Directors of the Company, at meetings duly called and held, has (a)
determined that the transactions contemplated by this Agreement, including the
Merger, are fair to and in the best interests of the shareholders of the
Company, (b) approved this Agreement and the transactions contemplated hereby,
including, without limitation, the Merger, and (c) resolved to recommend that
the Company's shareholders approve and adopt this Agreement, the Merger and the
transactions contemplated hereby. This Agreement has been duly executed and
delivered by the Company and subject to the execution and delivery of this
Agreement by nStor and the nStor Subsidiary constitutes a legal, valid and
binding agreement of the Company, enforceable against the Company in accordance
with its terms, except as enforcement may be limited by (i) bankruptcy,
insolvency, reorganization, moratorium and similar laws, both state and federal,
affecting the enforcement of creditors' rights or remedies in general as from
time to time in effect, or (ii) the exercise by courts of equitable powers.

    4.3   Capitalization.   The authorized Capital Stock of the Company
consists of (a) 40,000,000 shares of Class A Common Stock, $0.01 par value per
share, of which 25,432,303 shares are issued and outstanding, (b) 725,500 shares
of Class A Common Stock reserved for issuance upon the exercise of outstanding
Options, (c) [180,783] shares of Class A Common Stock reserved for issuance upon
exercise of outstanding Warrants, (d) 2,250,000 shares of Class C

                                      A-13
<PAGE>

Common Stock of which none are issued and outstanding, and (e) no shares of
Company Capital Stock are held in treasury. All of the outstanding shares of
Company Common Stock have been duly authorized and are validly issued, fully
paid and nonassessable and free of preemptive rights. Except for the Options and
the Warrants, there are no subscriptions, options, warrants, rights (including
"phantom" stock rights), convertible securities or other agreements or
commitments (contingent or otherwise) of any character (written or oral)
pursuant to which the Company is required to issue any shares of Capital Stock
or any securities convertible into or exchangeable for Capital Stock, or is
otherwise required to give any Person the right to receive any benefits or
rights similar to any rights enjoyed by or accruing to the holders of shares of
Capital Stock or any rights to participate in the equity or net income of the
Company. SCHEDULE 4.3 sets forth the number and exercise price of all
outstanding Options and Warrants. As of the Closing Date, there will be no
outstanding subscriptions, options (other than the Options), warrants (other
than the Warrants), rights or any other agreements or commitments of any kind or
any convertible or exchangeable securities of the sort described in the
immediately preceding sentence. Except as set forth on SCHEDULE 4.3, there are
not any shareholders' agreements, voting trusts or other agreements or
understandings between or among shareholders or to which the Company is a party
or by which it is bound with respect to the transfer or voting of any Capital
Stock.

    4.4   SEC Reports and Financial Statements.   The Company has filed with
the SEC, and has heretofore made available to nStor, true and complete copies
of, all forms, reports, schedules, statements and other documents required to be
filed by it since August 1997, under the Exchange Act or the 33 Act (such forms,
reports, schedules, statements and other documents, including any financial
statements or schedules included therein, are referred to as the "COMPANY SEC
DOCUMENTS"). The Company SEC Documents, at the time filed, (a) did not contain
any untrue statement of a material fact or omit to state a material fact
required to be stated therein or necessary in order to make the statements
therein, in light of the circumstances under which they were made, not
misleading and (b) complied in all material respects with the applicable
requirements of the Exchange Act and the 33 Act, as the case may be, and the
applicable rules and regulations of the SEC thereunder. The financial statements
of the Company included in the Company SEC Documents comply as to form in all
material respects with applicable accounting requirements and with the published
rules and regulations of the SEC with respect thereto, have been prepared in
accordance with GAAP (except as may be indicated in the notes thereto or, in the
case of the unaudited statements, as permitted by Forms 10-Q and 8-K of the SEC)
and fairly present (subject, in the case of the unaudited statements, to normal,
recurring audit adjustments) the financial position of the Company as at the
dates thereof and the results of operations and cash flows for the periods then
ended.

    4.5   No Broker's or Finder's Fees.   No broker, investment banker,
financial advisor or other person, other than Quarterdeck Investment Partners,
Inc. and Fleming Lessard & Shields LLC, the fees and expenses of which will be
paid by the Company, is entitled to any broker's, finder's, financial advisor's
or other similar fee or commission in connection with the transactions
contemplated by this Agreement, based upon arrangements made by or on behalf of
the Company.

                                      A-14
<PAGE>

    4.6   Opinion of Financial Advisor.   The Company has received the opinion
of Fleming Lessard & Shields LLC to the effect that, as of that date, the
consideration to be received in the Merger by the holders of Company Common
Stock is fair from a financial point of view, and a complete and correct signed
copy of such opinion has been, or promptly upon receipt thereof will be,
delivered to nStor.

    4.7   Information Supplied.   None of the information supplied or to be
supplied by the Company specifically for inclusion or incorporation by reference
in (i) the registration statement on Form S-4 to be filed with the SEC by nStor
in connection with the issuance of nStor Common Stock in the Merger (the
"REGISTRATION STATEMENT") will, at the time the Registration Statement is filed
with the SEC, at any time it is amended or supplemented and at the time it
becomes effective under the Securities Act, contain any untrue statement of a
material fact or omit to state any material fact required to be stated therein
or necessary to make the statements therein, in light of the circumstances under
which they are made, not misleading, and (ii) the Proxy Statement will, at the
date it is first mailed to the Company's stockholders and at the time of the
meeting of the Company's stockholders held to vote on approval of this
Agreement, contain any untrue statement of a material fact or omit to state any
material fact required to be stated therein or necessary in order to make the
statements therein, in light of the circumstances under which they are made, not
misleading. The Proxy Statement will comply in all material respects with the
requirements of the Exchange Act, and the rules and regulations thereunder. No
representation is made by the Company in this SECTION 4.7 with respect to
statements made or incorporated by reference in the Proxy Statement based on
information supplied by nStor or the nStor Subsidiary specifically for inclusion
or incorporation by reference in the Proxy Statement.


                                   ARTICLE V

                        REPRESENTATIONS AND WARRANTIES
                       OF NSTOR AND THE NSTOR SUBSIDIARY

    nStor and the nStor Subsidiary, jointly and severally, hereby represent
and warrant to the Company as follows:

    5.1   Organization, Standing, etc., of nStor.   nStor is a corporation duly
organized, validly existing, and in good standing under the laws of the State of
Delaware and has all requisite corporate power and authority to own its assets
and to carry on its business as presently conducted.

    5.2   Organization, Standing, etc., of nStor Subsidiary.   The nStor
Subsidiary is a newly formed corporation duly organized, validly existing, and
in good standing under the laws of the State of Florida and has all requisite
corporate power and authority to own its assets and to carry on its business as
presently conducted.

                                      A-15
<PAGE>

    5.3   Authorization and Execution.   Each of nStor and the nStor Subsidiary
has all corporate power and authority to enter into this Agreement and, subject
to the approval of the issuance of nStor Common Stock pursuant to the Merger by
the holders of a majority of the outstanding shares of nStor Common Stock on the
record date for the Special Meeting of the nStor Shareholders, to consummate the
transaction contemplated by this Agreement. The execution and delivery of this
Agreement and, subject to the approval of the issuance of nStor Common Stock
pursuant to the Merger by the holders of a majority of the outstanding shares of
nStor Common Stock outstanding on the record date for the Special Meeting of the
nStor Shareholders, the performance of each of nStor and the nStor Subsidiary of
this Agreement and the consummation by each of them of the transactions
contemplated hereby have been duly authorized by all necessary corporate action
on the part of nStor and the nStor Subsidiary. This Agreement has been duly
executed and delivered by each of nStor and the nStor Subsidiary and subject to
the execution and delivery of this Agreement by the Company, constitutes a
legal, valid and binding agreement of each of nStor and the nStor Subsidiary
enforceable against nStor and the nStor Subsidiary, as applicable, in accordance
with its terms, except as enforcement may be limited by (i) bankruptcy
insolvency, reorganization, moratorium and similar laws, both state and federal,
affecting the enforcement of creditors' rights or remedies in general as from
time to time in effect, or (ii) the exercise by courts of equitable powers.

    5.4   Capitalization.

          (a)  The authorized capital stock of nStor consists of (a)
40,000,000 shares of nStor Common Stock of which 22,706,925 shares are issued
and outstanding, (b) 2,401,000 shares of nStor Common Stock have been reserved
for issuance upon the exercise of outstanding nStor Options, (c) 2,420,133
shares of nStor Common Stock have been reserved for issuance upon exercise of
outstanding nStor Warrants, (d) 160,000 shares of nStor Common Stock have been
reserved for issuance upon the conversion of nStor Notes, (e) 4,000 shares of
Series A Preferred Stock of which 1,667 are issued and outstanding, (f) 4,000
shares of Series C Preferred Stock of which 3,000 are issued and outstanding,
(g) 6,000 shares of Series D Preferred Stock of which 2,700 are issued and
outstanding, (h) 3,500 shares of Series E Preferred Stock of which 3,500 are
issued and outstanding, (i) 4,654 shares of Series F Preferred Stock of which
4,654 are issued and outstanding, and (j) no shares of nStor capital stock are
held in treasury. All of the outstanding shares of nStor capital stock have been
duly authorized and are validly issued, fully paid and nonassessable and free of
preemptive rights. Except for the nStor Options, the nStor Warrants, the nStor
Notes, and the outstanding shares of nStor Preferred Stock, there are no
subscriptions, options, warrants, rights (including "phantom" stock rights),
convertible securities or other agreements or commitments (contingent or
otherwise) of any character (written or oral) pursuant to which nStor is
required to issue any shares of its capital stock or any securities convertible
into or exchangeable for its capital stock, or is otherwise required to give any
Person the right to receive any benefits or rights similar to any rights enjoyed
by or accruing to the holders of shares of nStor capital stock or any rights to
participate in the equity or net income of nStor. SCHEDULE 5.4 sets forth the
number and exercise and/or conversion price of all outstanding nStor Options,
nStor Warrants, nStor Notes and nStor Preferred Stock.

                                      A-16
<PAGE>

          (b)  At the Effective Time, the duly authorized capital stock
of the nStor Subsidiary will consist of 1,000 shares of common stock, $.01 par
value, 100 shares of which will be validly issued, fully paid and nonassessable
and owned of record and beneficially by nStor. There are no outstanding options,
warrants or other rights to subscribe for or purchase capital stock (or
securities convertible into or exchangeable for capital stock) of the nStor
Subsidiary. The nStor Subsidiary has not engaged in any activities other than as
contemplated by the terms of this Agreement.

    5.5   SEC Reports and Financial Statements.   nStor has filed with the SEC,
and has heretofore made available to the Company true and complete copies of,
all forms, reports, schedules, statements and other documents required to be
filed by it since August 1997, under the Exchange Act or the 33 Act (such forms,
reports, schedules, statements and other documents, including any financial
statements or schedules included therein, are referred to as the "nSTOR SEC
DOCUMENTS"). The nStor SEC Documents, at the time filed, (a) did not contain any
untrue statement of a material fact or omit to state a material fact required to
be stated therein or necessary in order to make the statements therein, in light
of the circumstances under which they were made, not misleading and (b) complied
in all material respects with the applicable requirements of the Exchange Act
and the 33 Act, as the case may be, and the applicable rules and regulations of
the SEC thereunder. The financial statements of nStor included in the nStor SEC
Documents comply as to form in all material respects with applicable accounting
requirements and with the published rules and regulations of the SEC with
respect thereto, have been prepared in accordance with GAAP (except as may be
indicated in the notes thereto or, in the case of the unaudited statements, as
permitted by Forms 10-Q and 8-K of the SEC) and fairly present (subject, in the
case of the unaudited statements, to normal, recurring audit adjustments) the
financial position of the nStor as at the dates thereof and the results of
operations and cash flows for the periods then ended.

    5.6   No Broker's or Finder's Fees.   No broker, investment banker,
financial advisor or other person is entitled to any broker's, finder's,
financial advisor's or other similar fee or commission in connection with the
transactions contemplated by this Agreement, based upon arrangements made by or
on behalf of nStor.

    5.7   Information Supplied.   None of the information supplied or to be
supplied by nStor specifically for inclusion or incorporation by reference in
(i) the Registration Statement will, at the time the Registration Statement is
filed with the SEC, at any time it is amended or supplemented and at the time it
becomes effective under the Securities Act, contain any untrue statement of a
material fact or omit to state any material fact required to be stated therein
or necessary to make the statements therein, in light of the circumstances under
which they are made, not misleading, and (ii) the Proxy Statement will, at the
date it is first mailed to the Company's and nStor's stockholders and at the
time of the meeting of the Company's and nStor's stockholders held to vote on
approval of this Agreement or the issuance of the nStor Common Stock, as
applicable, contain any untrue statement of a material fact or omit to state any
material fact required to be stated therein or necessary in order to make the
statement therein, in light of the circumstances under which they are

                                      A-17
<PAGE>

made, not misleading. The Registration Statement will comply as to form in all
material respects with the requirements of the Exchange Act, and the rules and
regulations thereunder. No representation is made by nStor in this SECTION 5.7
with respect to statements made or incorporated by reference in the Registration
Statement based on information supplied by the Company specifically for
inclusion or incorporation by reference in the Registration Statement.


                                  ARTICLE VI

                           COVENANTS OF THE COMPANY

    The Company covenants and agrees with nStor or the nStor Subsidiary
that, between the date of this Agreement and the Effective Time (the
"Pre-Closing Period"), the Company at its expense will comply with all covenants
and provisions of this ARTICLE VI, except to the extent otherwise expressly
required or permitted by this Agreement.

    6.1   Investigations.   The Company will provide nStor and nStor's counsel,
accountants and other representatives and agents with reasonable access, upon
prior notice and during normal business hours, to all facilities, officers,
directors, employees, agents, accountants, actuaries, assets, properties, books
and records of the Company and will furnish nStor with such financial and
operating data and other information with respect to the business and properties
of the Company or the transactions contemplated hereby as nStor shall from time
to time request; PROVIDED, HOWEVER, that such investigation (a) shall be
conducted in such manner as not to interfere unreasonably with the operation of
the business of the Company, and (b) shall not affect any of the representations
and warranties hereunder. The Company will also provide nStor with timely notice
of and access to minutes of all meetings (and all actions by written consent in
lieu thereof) of the board of directors, or any committee thereof, and
shareholders of the Company.

    6.2   Operation of the Company.

          (a)  During the Pre-Closing Period, the Company will carry on
its business solely in the usual and ordinary course consistent with past
practice. Without limiting the generality of the foregoing:

               (i)    the Company shall conduct its business and operations in
the ordinary course and in substantially the same manner as such business and
operations have been conducted prior to the date of this Agreement;

               (ii)   the Company shall use reasonable efforts
to preserve intact its current business organization, keep available the
services of its current officers, directors, employees, agents, consultants and
other similar representatives and maintain its relations and good will with all
suppliers, customers, landlords, creditors, employees and other Persons having
business relationships with the Company;

                                      A-18
<PAGE>

               (iii)  the Company shall keep in full force all
insurance policies maintained by it as of the date hereof;

               (iv)   the Company shall cause its officers to
report regularly (but in no event less frequently than weekly) to nStor
concerning the status of the Company's business;

               (v)    the Company shall not declare, accrue, set
aside or pay any dividend or make any other distribution in respect of any
shares of Capital Stock, and shall not repurchase, redeem or otherwise reacquire
any shares of Capital Stock or other securities (except that the Company may
repurchase Company Common Stock from former employees pursuant to the terms of
existing restricted stock purchase agreements);

               (vi)   the Company shall not sell, issue or
authorize the issuance of (i) any Capital Stock or other security, (ii) any
option or right to acquire any Capital Stock or other security, or (iii) any
instrument convertible into or exchangeable for any Capital Stock or other
security (except that the Company shall be permitted to issue Company Common
Stock to employees upon the exercise of outstanding Options and Warrants and to
new employees consistent with its existing hiring policy;

               (vii)  the Company shall not amend or waive any of
its rights under, or permit the acceleration of vesting under, (i) except to the
extent expressly permitted under the terms of this Agreement, any provision of
any of its stock plans, (ii) any provision of any agreement evidencing any
outstanding Option, or (iii) any provision of any restricted stock purchase
agreement;

               (viii) the Company shall not (i) amend or permit
the adoption of any amendment to the Company's articles of organization or
bylaws, (ii) effect or permit the Company to become a party to any
recapitalization, reclassification of shares, stock split, reverse stock split
or similar transaction, (iii) form any subsidiary or acquire any equity interest
or other interest in any other entity, or (iv) merge, consolidate or otherwise
combine or agree to merge, consolidate or otherwise combine with any other
Person;

               (ix)   the Company shall not make any capital
expenditure, except for capital expenditures that, when added to all other
capital expenditures made on behalf of the Company during the Pre-Closing
Period, do not exceed $50,000 per month;

               (x)    the Company shall not (i) enter into, or
permit any of the assets owned or used by it to become bound by, any contract
other than in the ordinary course of business consistent with past practice, or
(ii) amend or prematurely terminate, or waive any material right or remedy
under, any such contract;

               (xi)   the Company shall not (i) acquire, lease
or license any right or other asset from any other Person, (ii) sell or
otherwise dispose of, or lease or license, any right or other

                                      A-19
<PAGE>

asset to any other Person, or (iii) waive or relinquish any right, except for
assets acquired, leased, licensed or disposed of by the Company in the ordinary
course of business consistent with past practice;

               (xii)  the Company shall not (i) lend money to any
Person (except that the Company may make routine travel advances to employees in
the ordinary course of business and may, consistent with its past practices,
allow employees to acquire Company Common Stock in exchange for promissory notes
upon exercise of Options), or (ii) incur or guarantee any indebtedness for
borrowed money (except that the Company may make routine borrowings in the
ordinary course of business under its line of credit with Wells Fargo Credit,
Inc.);

               (xiii) the Company shall not (i) establish, adopt
or amend any employee benefit plan, (ii) pay any bonus or make any
profit-sharing payment, cash incentive payment or similar payment to, or
increase the amount of the wages, salary, commissions, fringe benefits or other
compensation or remuneration payable to, any of its directors, officers or
employees, or (iii) hire any new employee whose aggregate annual compensation is
expected to exceed $30,000;

               (xiv)  the Company shall not change any of its
methods of accounting or accounting practices in any material respect;

               (xv)   the Company shall not make any Tax
election; and

               (xvi)  the Company shall not agree or commit to take
any of the actions described in clauses "(v)" through "(xv)" above.

          (b)  The Company will promptly advise nStor in writing of the
commencement or threat of any claim, litigation, action, suit, inquiry or
proceeding involving the Company, its properties or assets, or any of its
directors, officers or agents (in their capacities as such).

          (c)  The Company shall furnish nStor with a copy of all
amendments to the Company's Annual Report on Form 10-K, filed with the SEC for
the year ended October 31, 1998 (the "COMPANY 10-K") and of any other form filed
with the SEC under the Exchange Act from the date of filing of the Company 10-K
to the Effective Time of the Merger.

          (d)  The Company will use its best efforts to (i) maintain all
of its licenses, qualifications and authorizations to do business in each
jurisdiction in which it is so licensed, qualified or authorized, (ii) maintain
in full force and effect all material contracts, documents and arrangements ,
and (iii) continue all current marketing and selling activities relating to the
business, operations or affairs of the Company.

          (e)  The Company will comply, in all material respects, with
all Legal Requirements applicable to its business, operations or affairs.

                                      A-20
<PAGE>

          (f)  Notwithstanding the foregoing, the Company may take any
action described in clauses "(v") through "(xvi)" above if nStor gives its prior
written consent to the taking of such action by the Company.

    6.3   No Solicitation.

          (a)  The Company and its officers, directors, employees,
representatives and agents shall immediately cease any discussions or
negotiations with any parties that may be ongoing with respect to a Takeover
Proposal (as hereinafter defined). The Company shall not authorize or permit any
of its officers, directors or employees or any investment banker, financial
advisor, attorney, accountant or other representative retained by it to,
directly or indirectly, solicit, initiate or encourage (including by way of
furnishing information) any inquiries or the making of any proposal which
constitutes, or may reasonably be expected to lead to, any Takeover Proposal;
PROVIDED, HOWEVER, that if, at any time prior to the Effective Time, the Board
of Directors of the Company determines in good faith, after consultation with
outside counsel, that it is necessary to do so in order to comply with its
fiduciary duties to the Company's shareholders under applicable law, the Company
may, in response to an unsolicited Takeover Proposal, and subject to compliance
with SECTION 6.3(c), (A) furnish information with respect to the Company to any
Person pursuant to a confidentiality agreement in a form approved by the Company
and (B) participate in negotiations regarding such Takeover Proposal. Without
limiting the foregoing, it is understood that any violation of the restrictions
set forth in the preceding sentence by any director or executive officer of the
Company or any investment banker, financial advisor, attorney, accountant or
other representative of the Company, whether or not such Person is purporting to
act on behalf of the Company or otherwise, shall be deemed to be a breach of
this SECTION 6.3(a) by the Company. For purposes of this Agreement, "TAKEOVER
PROPOSAL" means any inquiry, proposal or offer from any Person relating to any
direct or indirect acquisition or purchase of twenty percent (20%) or more of
the assets of the Company or twenty percent (20%) or more of any class of equity
securities of the Company, any tender offer or exchange offer that if
consummated would result in any Person beneficially owning twenty percent (20%)
or more of any class of equity securities of the Company, any merger,
consolidation, business combination, sale of substantially all of the assets,
recapitalization, liquidation, dissolution or similar transaction involving the
Company, other than the transactions contemplated by this Agreement, or any
other transaction the consummation of which could reasonably be expected to
impede, interfere with, prevent or materially delay the Merger or which would
reasonably be expected to dilute materially the benefits to nStor of the
transactions contemplated hereby.

          (b)  Except as set forth in this SECTION 6.3, neither the Board
of Directors of the Company nor any committee thereof shall (i) withdraw or
modify or propose to withdraw or modify, in a manner adverse to nStor, the
approval or recommendation by such Board of Directors or such committee of this
Agreement or the Merger, (ii) approve or recommend, or propose to approve or
recommend, any Takeover Proposal or (iii) cause the Company to enter into any
agreement with respect to any Takeover Proposal.

                                      A-21
<PAGE>

    Notwithstanding the foregoing, in the event that, prior to the Merger,
the Board of Directors of the Company determines in good faith, after
consultation with outside counsel, that it is necessary to do so in order to
comply with its fiduciary duties to the Company's shareholders under applicable
law, the Board of Directors of the Company may (subject to the other provisions
of this SECTION 6.3) withdraw or modify its approval or recommendation of this
Agreement and the Merger, approve or recommend a Superior Proposal (as defined
below), cause the Company to enter into an agreement with respect to a Superior
Proposal or terminate this Agreement, but in each case only at a time that is
after the second business day following nStor's receipt of written notice (a
"NOTICE OF SUPERIOR PROPOSAL") advising nStor that the Board of Directors of the
Company has received a Superior Proposal, specifying the material terms and
conditions of such Superior Proposal and identifying the Person making such
Superior Proposal. In the event that a Notice of Superior Proposal is delivered
and any material term or condition of the Superior Proposal described therein is
subsequently changed, the Company shall deliver a supplemental Notice of
Superior Proposal describing such change and may withdraw or modify its approval
or recommendation of this Agreement and the Merger, approve or recommend the
modified Superior Proposal or cause the Company to enter into an agreement with
respect to the modified Superior Proposal only at a time that is after the
second business day following nStor's receipt of the supplemental Notice of
Superior Proposal. In addition, if the Company proposes to enter into an
Agreement with respect to any Takeover Proposal, it shall concurrently with
entering into such agreement pay, or cause to be paid to nStor any indebtedness
owed to nStor including, without limitation, with respect to product sold or
services provided by nStor to the Company or supplied or provided by nStor to
any of the Company's customers at the request of the Company. For purposes of
this Agreement, a "SUPERIOR PROPOSAL" means any bonafide proposal made by a
third party to acquire, directly or indirectly, for consideration consisting of
cash and/or securities, more than fifty percent (50%) of the shares of the
Company Common Stock then outstanding or all or substantially all the assets of
the Company and otherwise on terms which the Board of Directors of the Company
determines in its good faith judgment based on the advice of a financial advisor
of nationally recognized reputation to be more favorable to the Company's
shareholders than the Merger.

          (c)  In addition to the obligations of the Company set forth in
paragraphs (a) and (b) of this SECTION 6.3, the Company shall immediately advise
nStor orally and in writing of any request for information or of any Takeover
Proposal, the material terms and conditions of such request or Takeover Proposal
and the identity of the Person making such request or Takeover Proposal. The
Company will keep nStor fully informed of the status and details (including
amendments or proposed amendments) of any such request or Takeover Proposal.

          (d)  Nothing contained in this SECTION 6.3 shall prohibit the
Company from taking and disclosing to its shareholders a position contemplated
by Rule 14e-2(a) promulgated under the Exchange Act or from making any
disclosure to the Company's shareholders if, in the good faith judgment of the
Board of Directors of the Company, after consultation with outside counsel,
failure so to disclose would be inconsistent with its fiduciary duties to the
Company's shareholders under applicable law; PROVIDED, HOWEVER, neither the
Company nor its Board of Directors nor any committee thereof shall, except as
permitted by SECTION 6.3(b), and except

                                      A-22
<PAGE>

in the event that the fairness opinion of the Company's financial adviser is
withdrawn or modified to a materially adverse extent, withdraw or modify, or
propose to withdraw or modify, its position with respect to this Agreement or
the Merger or approve or recommend, or propose to approve or recommend, a
Takeover Proposal.

    6.4   Board Approval, Fairness Opinion, Shareholder Approval and Proxy
Statement.

          (a)  The Company hereby approves of and consents to the Merger
and represents that the Board of Directors of the Company, at a meeting duly
called and held, duly adopted resolutions approving this Agreement and the
Merger, determining that the terms of the Merger are fair to, and in the best
interest of, the Company's shareholders and recommending that the Company's
shareholders approve and adopt this Agreement. The Company represents that its
Board of Directors has received the opinion of Fleming, Lessard & Shields LLC
that the proposed consideration to be received by the holders of the Company
Common Stock pursuant to the Merger is fair to such holders from a financial
point of view, and a complete and correct signed copy of such opinion has been
delivered by the Company to nStor.

          (b)  The Company will, through its Board of Directors,
recommend to its shareholders that the shareholders vote in favor of, or
otherwise consent to, the approval of this Agreement, the Merger and the
transactions contemplated hereby. Without limiting the generality of the
foregoing, the Company agrees that its obligations pursuant to the first
sentence of this SECTION 6.4(b) shall not be affected by the commencement,
public proposal, public disclosure or communication to the Company of any
Takeover Proposal. The Company shall, as soon as practicable following the date
hereof, establish a record date for, duly call, give notice of, convene and hold
a meeting of its shareholders, to be held as promptly as practicable after the
date of this Agreement, for the purpose of voting upon the Merger and this
Agreement (the "COMPANY SPECIAL MEETING").

          (c)  The Company shall cooperate and assist nStor with the
preparation and filing with the SEC of the Proxy Statement and the Registration
Statement relating to the issuance of the Merger Consideration, in which the
Proxy Statement will be included as a prospectus. The Company shall use its best
efforts to have the Registration Statement declared effective under the
Securities Act as promptly as practicable after such filing.

          (d)  If at any time prior to the Effective Time any event
relating to the Company or any of its subsidiaries should be discovered which
should be set forth in an amendment of, or a supplement to, the Registration
Statement, the Company promptly shall so inform nStor and shall furnish all
necessary information to nStor relating to such event.

    6.5   Financial Statements and Reports.

          (a)  As promptly as practicable after each calendar month
ending during the Pre- Closing Period, but in no event later than 30 days after
the end of each such month, the Company

                                      A-23
<PAGE>

will deliver to nStor true and correct copies of the unaudited financial
statements (including a balance sheet, a statement of operations and changes in
shareholders' equity and cash flows) of the Company as of and for the month then
ended, prepared in accordance with GAAP (except for the absence of footnotes)
and which shall present fairly the financial condition and assets and
liabilities (whether accrued, absolute, contingent or otherwise) of the Company
as of the end of such month and the results of operations of the Company for and
during the period then ended, subject to normal and recurring year-end audit and
quarter-end adjustments.

          (b)  As promptly as practicable, the Company will deliver to
nStor true and complete copies of such other material financial statements,
reports or analyses as may be prepared or received by the Company and as relate
to the Company's business and operations, and such other information with
respect to the foregoing as nStor reasonably may request, including, without
limitation, normal internal reports and special reports (such as those of
consultants).

    6.6   Notice and Cure.   The Company will notify nStor promptly in writing
of, and contemporaneously will provide nStor with true and complete copies of
any and all information or documents relating to, and will use its best efforts
to cure before the Effective Time, any event, transaction or circumstance that
results in or will result in any covenant or agreement of the Company under this
Agreement being breached, or that renders or will render untrue any
representation or warranty of the Company contained in this Agreement as if the
same were made on or as of the date of such event, transaction or circumstance.
The Company will use its best efforts to cure, at the earliest practicable date
and prior to the Effective Time, any violation or breach of any representation,
warranty, covenant or agreement made by the Company in this Agreement, whether
occurring or arising before or after the date of this Agreement.

    6.7   Best Efforts and Consents.   Subject to the terms and conditions
herein provided, the Company shall use its best efforts to take, or cause to be
taken, all actions and to do, or cause to be done, all things necessary, proper
or advisable under applicable Legal Requirements and otherwise to consummate and
make effective the transactions contemplated by this Agreement, and to satisfy
the conditions to Closing and shall use its best efforts to obtain all necessary
actions or non-actions, extensions, waivers, Consents, licenses and clearances
and to effect all registrations, filings and notices with, to or from other
Persons or Tribunals required of the Company that are necessary or desirable to
effect the Merger and the transactions contemplated hereby.

    6.8   Agreements and Covenants.   The Company shall not make any
commitment, either in writing or orally, which would violate any of the
provisions set forth in this ARTICLE VI.

                                      A-24
<PAGE>

                                  ARTICLE VII

                  COVENANTS OF NSTOR AND THE NSTOR SUBSIDIARY

    nStor covenants and agrees with the Company that, at all times during
the Pre-Closing Period, nStor at its expense will comply with all covenants and
provisions of this ARTICLE VII, except to the extent otherwise expressly
required or permitted by this Agreement.

    7.1   Investigations.   nStor will provide the Company and the Company's
counsel, accountants and other representatives and agents with reasonable
access, upon prior notice and during normal business hours, to all facilities,
officers, directors, employees, agents, accountants, actuaries, assets,
properties, books and records of nStor and will furnish the Company with such
financial and operating data and other information with respect to the business
and properties of nStor or the transactions contemplated hereby as the Company
shall from time to time request; PROVIDED, HOWEVER, that such investigation (a)
shall be conducted in such manner as not to interfere unreasonably with the
operation of the business of nStor, and (b) shall not affect any of the
representations and warranties hereunder.

    7.2   Conduct of Business of the nStor Subsidiary.   During the period from
the date of this Agreement to the Effective Time, the nStor Subsidiary shall not
engage in any activities of any nature except as provided in or contemplated by
this Agreement.

    7.3   Operation of nStor.   During the Pre-Closing Period, nStor will carry
on its business solely in the usual and ordinary course consistent with past
practice.

    7.4   Obligation of nStor to Make Merger Effective and The nStor
Subsidiary's Shareholder Consent.   nStor shall cause the nStor Subsidiary to
take all actions necessary on its part to carry out the transactions
contemplated hereby. nStor, as the sole shareholder of the nStor Subsidiary, has
consented in writing to the approval of this Agreement and the Merger in
accordance with the FBCA. NStor shall, as soon as practicable following the date
hereof, establish a record date for, duly call, give notice of, convene and hold
a meeting of its shareholders, to be held as promptly as practicable after the
date of this Agreement, for the purpose of voting upon the issuance of the nStor
Common Stock in the Merger.

    7.5   Notice and Cure.   nStor will notify the Company promptly in writing
of, and contemporaneously will provide the Company with true and complete copies
of any and all information or documents relating to, and will use its best
efforts to cure before the Effective Time, any event, transaction or
circumstance occurring after the date of this Agreement that results in or will
result in any covenant or agreement of nStor under this Agreement to be
breached, or that renders or will render untrue any representation or warranty
of nStor contained in this Agreement as if the same were made on or as of the
date of such event, transaction or circumstance. nStor also will use its best
efforts to cure, at the earliest practicable date and before the Effective Time,
any

                                      A-25
<PAGE>

violation or breach of any representation, warranty, covenant or agreement made
by it in this Agreement, whether occurring or arising before or after the date
of this Agreement.

    7.6   Best Efforts and Consents.   Subject to the terms and conditions
herein provided, nStor shall use its best efforts to take, or cause to be taken,
all actions and to do, or cause to be done, all things necessary, proper or
advisable under applicable Legal Requirements and otherwise to consummate and
make effective the transactions contemplated by this Agreement and shall use its
best efforts to obtain all necessary actions or non-actions, extensions,
waivers, Consents, Licenses and clearances and to effect all registrations,
filings and notices with, to or from other Persons or Tribunals required of
nStor or the nStor Subsidiary that are necessary or desirable to effect the
Merger and the transactions contemplated hereby.

    7.7   Information for Proxy Statement for the Company's Shareholders.
nStor will furnish to the Company such data and information relating to it as
the Company may reasonably request for the purpose of including such data and
information in the Proxy Statement.

    7.8   Board Approval, Shareholder Approval, Proxy Statement and
Registration Statement.

          (a)  The Board of Directors of nStor, at a meeting duly called and
held, duly adopted resolutions approving the issuance of the nStor Common Stock
to be issued in the Merger. nStor will, through its Board of Directors,
recommend to its shareholders that the shareholders vote in favor of, or
otherwise consent to, the approval of the issuance of the nStor Common Stock to
be issued in the Merger.

          (b)  nStor promptly shall prepare, with the Company's cooperation and
assistance, and file with the SEC the Proxy Statement and nStor promptly shall
prepare and file with the SEC the Registration Statement relating to the
issuance of the Merger Consideration, in which the Proxy Statement will be
included as a prospectus. Each of nStor and the Company shall use its best
efforts to have the Registration Statement declared effective under the
Securities Act as promptly as practicable after such filing.

          (c)  nStor shall use its best efforts to obtain, prior to the
effective date of the Registration Statement, all necessary state securities law
or "Blue Sky" permits or approvals in connection with the issuance of nStor
Common Stock in the Merger and under the Company Stock Options, except that
nStor shall not be required to execute or file any general consent to service of
process in any jurisdiction in which it is not qualified to transact business or
to register as a dealer in any jurisdiction. nStor shall advise the Company
(promptly after it receives notice thereof) of the time when the Registration
Statement has become effective, of any supplement or amendment that has been
filed, of the issuance of any stop order, of the suspension of the qualification
of the shares of nStor Common Stock for offering or sale in any jurisdiction, or
of any request by the SEC for amendment of the Registration Statement or for
additional information.

                                      A-26
<PAGE>

          (d)  If at any time prior to the Effective Time any event relating to
nStor or any of its subsidiaries should be discovered which should be set forth
in an amendment of, or a supplement to, the Proxy Statement, nStor promptly
shall so inform the Company and shall furnish all necessary information to the
Company relating to such event.

    7.9   Financial Statements and Reports.

          (a)  As promptly as practicable after each calendar month ending
during the Pre- Closing Period, but in no event later than 30 days after the end
of each such month, nStor will deliver to the Company true and correct copies of
the unaudited financial statements (including a balance sheet, a statement of
operations and changes in shareholders' equity and cash flows) of nStor as of
and for the month then ended, prepared in accordance with GAAP (except for the
absence of footnotes) and which shall present fairly the financial condition and
assets and liabilities (whether accrued, absolute, contingent or otherwise) of
nStor as of the end of such month and the results of operations of nStor for and
during the period then ended, subject to normal and recurring year-end audit and
quarter-end adjustments .

    7.10   Agreements and Covenants.   nStor shall not make any commitment,
either in writing or orally, which would violate any of the provisions set forth
in this ARTICLE VII.

                                 ARTICLE VIII

                                  CONDITIONS

    8.1   General Conditions.   Notwithstanding any other provisions of this
Agreement, the obligations of all of the parties hereto to effect the Merger
shall be subject to satisfaction prior to the Closing Date of the following
conditions:

          (a)   Shareholder Approval.   This Agreement and the Merger shall have
been approved and adopted by the affirmative vote of the holders of a majority
of the outstanding shares of Company Common Stock entitled to vote at a special
meeting of the shareholders of the Company. The issuance of nStor Common Stock
pursuant to the Merger shall have been approved by the affirmative vote of the
holders of a majority of the outstanding shares of nStor Common Stock entitled
to vote at a special meeting of the shareholders of nStor.

          (b)   No Violations or Proceedings.   Consummation of the Merger shall
not violate any Order of any Tribunal having competent jurisdiction, and no
action or proceeding shall have been instituted by any Person or threatened by
any Tribunal which, in either such case, in the good faith judgment of either
nStor or the Company has a reasonable probability of resulting in an Order,
restraining, prohibiting or rendering unlawful the consummation of the
transactions contemplated by this Agreement or the ownership and operation by
nStor after the Effective Time of the Surviving Corporation or all of the
material assets and business of the Company.

                                      A-27
<PAGE>

          (c)   Registration Statement.   The Registration Statement shall have
been declared effective, and no stop order terminating the effectiveness of the
Registration Statement shall have been issued or threatened.

          (d)   Amex Listing.   The shares of nStor Common Stock included in the
Merger Consideration shall have been duly listed for trading on Amex, subject to
official notice of issuance.

          (e)   Approvals of Tribunals and Other Persons.   All authorizations,
consents, orders or approvals of, or declarations or filings with, or expiration
or termination of any notice and waiting period imposed by, any Tribunal or any
other Person upon the consummation of the transactions contemplated by this
Agreement, the failure of which to obtain could reasonably be expected to have a
material adverse effect on the Company, nStor or nStor Subsidiary, shall have
been filed or obtained or shall have occurred. All of such authorizations,
consents, orders or approvals shall have been obtained without the imposition of
any conditions which would require the divestiture of any of the Company's or
nStor's assets or would otherwise materially adversely affect nStor's ability to
operate the businesses of the Company and its subsidiaries following the
Effective Time.

    8.2   Conditions to the Obligation of nStor and The nStor Subsidiary.
Notwithstanding any other provisions of this Agreement (including, without
limitation, SECTION 2.2), the obligations of nStor and the nStor Subsidiary to
effect the Merger shall be subject to satisfaction prior to the Closing Date of
the following conditions:

          (a)   Representations and Warranties True and Correct.   The
representations and warranties of the Company that are qualified as to
materiality shall have been true and correct and such representations and
warranties that are not so qualified shall have been true and correct in all
material respects, in each case as of the date of this Agreement and the date of
the Merger, except in the case of any representation and warranty that speaks as
of a particular date, which shall be true and correct or true and correct in all
material respects, as applicable, as of such date.

          (b)   Satisfaction of Obligations.   The Company shall have performed
in all material respects its material obligations, and shall have complied in
all material respects with its material covenants and agreements, under this
Agreement.

          (c)   Opinion of Counsel.   nStor and nStor Subsidiary shall have
received an opinion of counsel to the Company, dated the Effective Time, in form
reasonably satisfactory to nStor.

    8.3   Conditions to Obligations of The Company.   Notwithstanding any other
provisions of this Agreement (including, without limitation, SECTION 2.2), the
obligations of the Company to effect the Merger shall be subject to satisfaction
prior to the Closing Date of the following conditions:

                                      A-28
<PAGE>

          (a)   Representations and Warranties.   The representations and
warranties of nStor and nStor Subsidiary in this Agreement that are qualified as
to materiality shall have been true and correct and such representations and
warranties that are not so qualified shall have been true and correct in all
material respects, in each case as of the date of this Agreement and the date of
the Merger, except in the case of any representation and warranty that speaks as
of a particular date, which shall be true and correct or true and correct in all
material respects, as applicable, as of such date.

          (b)   Satisfaction of Obligations.   nStor and nStor Subsidiary shall
have performed in all material respects their material obligations, and shall
have complied in all material respects with their material covenants and
agreements, under this Agreement.

          (c)   Opinion of Counsel.   The Company shall have received an opinion
of counsel to nStor and nStor Subsidiary, dated the Effective Time, in form
reasonably satisfactory to the Company.

          (d)   Fairness Opinion.   The Company shall have received the opinion
of Fleming, Lessard & Shields LLC to the effect that the consideration to be
paid to the holders of Company Common Stock pursuant to the Merger is fair from
a financial point of view, and such opinion shall not have been withdrawn or
modified to a materially adverse extent.

          (e)   nStor Stock Options.   The Company shall have received from
nStor, at least five (5) business days prior to the Closing Date, a list of
Andataco employees to whom nStor will grant stock options pursuant to the nStor
Stock Option Plan, including the number of options to be granted and the vesting
schedule.

                                  ARTICLE IX

                       TERMINATION; PAYMENT OF EXPENSES

    9.1   Termination of Agreement and Abandonment of Merger.   Anything herein
to the contrary notwithstanding, this Agreement and the Merger contemplated
hereby may be terminated at any time before the Effective Time, whether before
or after approval of this Agreement by the shareholders of the Company, as
follows:

          (a)   Mutual Consent.   By mutual written consent of nStor and the
Company.

          (b)   nStor or the Company.   By either nStor or the Company (i) if
the Merger shall not have occurred prior to December 31, 1999; PROVIDED,
HOWEVER, that the right to terminate the Agreement pursuant to this SECTION
9.1(b)(i) shall not be available to any party whose failure to perform any of
its obligations under the Agreement results in the failure of any such condition
or if the failure of such condition results from facts or circumstances that
constitute a breach of a representation or warranty under the Agreement by such
party; or (ii) if any Tribunal

                                      A-29
<PAGE>

shall have issued an order, decree or ruling or taken any other action
permanently enjoining, restraining or otherwise prohibiting the acceptance for
payment of, or payment for, shares of Capital Stock pursuant to the Merger and
such order, decree or ruling or other action shall have become final and
nonappealable.

          (c)   nStor or the nStor Subsidiary.   By nStor if (i) any of the
representations and warranties of the Company contained in this Agreement shall
not have been, or shall cease to be, true and correct in all material respects
(whether because of circumstances or events occurring in whole or in part prior
to, on or after the date of this Agreement), or (ii) the Company shall have
breached or failed to perform in any material respect any covenant or agreement
to be performed by it pursuant to this Agreement; provided, that nStor or nStor
Subsidiary may not terminate the Agreement pursuant to this SECTION 9.1(c) if
nStor or nStor Subsidiary is at such time in breach of its obligations under
this Agreement.

          (d)   Company.   By the Company (i) in connection with entering
into a definitive agreement in accordance with SECTION 6.3(b), provided it has
complied with all provisions thereof, including the notice provisions therein;
or (ii) if (A) any of the representations and warranties of nStor or the nStor
Subsidiary contained in this Agreement shall not have been, or shall cease to
be, true and correct in all material respects (whether because of circumstances
or events occurring in whole or in part prior to, on or after the date of this
Agreement) or (B) nStor or the nStor Subsidiary shall have breached or failed to
perform in any material respect any covenant or agreement to be performed by
them pursuant to this Agreement, provided, that the Company may not terminate
the Agreement pursuant to this SECTION 9.1(d) if the Company is at such time in
breach of its obligations under this Agreement.

    9.2   Effect of Termination.   In the event of a termination of this
Agreement by either the Company or nStor as provided in SECTION 9.1, this
Agreement shall forthwith become void and there shall be no liability or
obligation on the party of nStor, nStor Subsidiary or the Company or their
respective officers or directors, except with respect to SECTION 4.5, this
SECTION 9.2 and ARTICLE XI; PROVIDED, HOWEVER, that nothing herein shall relieve
any party for liability for any breach hereof.

    9.3   Amendment.   This Agreement may be amended by the parties hereto, by
action taken or authorized by their respective Boards of Directors, at any time
before or after obtaining the approval of the Company's shareholders (if
required by law), but, after any such approval, no amendment shall be made which
by law requires further approval by such shareholders without obtaining such
further approval. This Agreement may not be amended except by an instrument in
writing signed on behalf of each of the parties hereto.

    9.4   Extension; Waiver.   At any time prior to the Effective Time, the
parties hereto, by action taken or authorized by their respective Boards of
Directors, may, to the extent legally allowed, (a) extend the time for the
performance of any of the obligations or other acts of the other parties hereto,
(b) waive any inaccuracies in the representations and warranties contained
herein or in any

                                      A-30
<PAGE>

document delivered pursuant hereto or (c) subject to the proviso of SECTION 9.3,
waive compliance with any of the agreements or conditions contained herein. Any
agreement on the part of a party hereto to any such extension or waiver shall be
valid only if set forth in a written instrument signed on behalf of such party.
The failure of any party to this Agreement to assert any of its rights under the
Agreement or otherwise shall not constitute a waiver of those rights.

    9.5   Fees and Expenses.   Except as provided below in this SECTION 9.5,
all fees and expenses incurred in connection with the Merger, this Agreement and
the transactions contemplated by this Agreement shall be paid by the party
incurring such fees or expenses, whether or not the Merger is consummated.


                                   ARTICLE X

                               FURTHER COVENANTS

    10.1   nStor to Cause nStor Subsidiary and Surviving Corporation To
Perform.   nStor shall cause nStor Subsidiary prior to the Merger and the
Surviving Corporation after the Merger to perform their obligations and comply
with their covenants and agreements under this Agreement.

    10.2   Indemnification and Insurance of Company Officers and Directors.

          (a)   Insurance.   For a period of three (3) years after the Closing
Date, nStor shall cause the Surviving Corporation to maintain in effect, at no
expense to the insureds thereunder, the current policy (or policies) of
director's and officer's liability insurance maintained by the Company;
provided, however, that such policy (or policies) need cover only wrongful acts
of the insureds that occurred prior to June 8, 1999. If the annual premium
therefor exceeds 125% of the annual premium that the Company spent in the last
fiscal year to maintain or procure its current policy (or policies) of
director's and officer's liability insurance, then the Surviving Corporation
shall only be obligated to maintain a policy of director's and officer's
liability insurance providing the amount of coverage that can be purchased for
125% of such premium. For the period from June 8, 1999 through and including the
date upon which such individual ceases to be an officer or director of nStor or
any of its affiliates, each of the insureds under the Company's director's and
officer's liability insurance policy as of June 8, 1999 shall be insured under
the director's and officer's liability insurance policy of nStor.

          (b)   Indemnification.

                (i) The Company shall, and from and after the Effective Time the
Surviving Corporation shall, indemnify, defend and hold harmless each Person who
is now, or who becomes prior to the Effective Time, an executive officer or
director of the Company or any of its subsidiaries (the "INDEMNIFIED PARTIES")
against all losses, claims, damages, costs, expenses, liabilities or judgments
or amounts that are paid in settlement with the approval of the indemnifying

                                      A-31
<PAGE>

party (which approval shall not be withheld unreasonably) of or in connection
with any claim, action, suit, proceeding or investigation based in whole or in
part on or arising in whole or in part out of the fact that such Person is or
was a director or executive officer of the Company or any of its subsidiaries,
whether pertaining to any matter existing or occurring at or prior to the
Effective Time and whether asserted or claimed prior to, or at or after, the
Effective Time ("INDEMNIFIED LIABILITIES"), in each case to the full extent
provided under the Articles of Organization and Bylaws of the Company as in
effect as of the date hereof or permitted under Massachusetts law, as
applicable, to indemnify directors and officers. As of the date hereof, the
Company has no knowledge, after due inquiry of its directors and executive
officers, of any pending or threatened claims, actions or other matters which
reasonably could give rise to Indemnified Liabilities.

                (ii)  After the Effective Time, any Indemnified Party wishing to
claim indemnification under this Section, upon learning of any Indemnified
Liability shall notify the Surviving Corporation within ten (10) days thereof;
provided, however, that any failure so to notify the Surviving Corporation of
any obligation to indemnify such Indemnified Party or of any other obligation
imposed by this Section shall not affect such obligations except to the extent
the Surviving Corporation is materially prejudiced thereby. The Surviving
Corporation shall be entitled to assume the defense of any such action, suit,
claim, proceeding or investigation with counsel of its choice (who shall be
reasonably acceptable to the Indemnified Party), unless there is a conflict
between the position of the Surviving Corporation, on the one hand, and the
Indemnified Party, on the other hand, in which event the Indemnified Party,
together with all other similarly situated Indemnified Parties in the same
proceeding as a group, may retain one law firm to represent them with respect to
such matter, the reasonable cost of which shall be borne by the Surviving
Corporation. Neither the Surviving Corporation, on the one hand, nor any
Indemnified Party, on the other hand, may settle any such action, suit, claim,
proceeding or investigation without the prior written consent of the other
party, which consent shall not be unreasonably withheld or delayed.

    If for a period of six (6) years after the Effective Time, the Surviving
Corporation or any of its successors or assigns (i) shall consolidate with or
merge into any other corporation or entity and shall not be the continuing or
surviving corporation or entity of such consolidation or merger or (ii) shall
transfer all or substantially all of its properties and assets to any
individual, corporation or other entity, then and in each such case, proper
provision shall be made so that the successors and assigns of the Surviving
Corporation shall assume the obligations of the Surviving Corporation set forth
in this SECTION 10.2(b). If the Surviving Corporation shall liquidate, dissolve
or otherwise wind up its business, then nStor shall indemnify, defend and hold
harmless each Indemnified Party to the same extent and on the same terms that
the Surviving Corporation was so obligated pursuant to this SECTION 10.2(b).

    10.3   Binding Effect.   The provisions of this ARTICLE X are intended for
the benefit of, and shall be enforceable by, each Indemnified Party and his or
her heirs and executors for a period of six (6) years after the Effective Time.
The Indemnified Parties shall be deemed third-party beneficiaries of this
ARTICLE X and shall be entitled to enforce its provisions directly against the
Surviving Corporation.

                                      A-32
<PAGE>

                                  ARTICLE XI

                                    GENERAL

    11.1   Release of Information.   The Company and nStor shall, subject to
their respective legal obligations (including requirements of the Nasdaq and
Amex and other similar regulatory bodies), cooperate with each other in
releasing information concerning this Agreement and the transactions
contemplated hereby. Each of the Company and nStor shall furnish to the other
drafts of all releases prior to publication and agree to promptly consult with
each other prior to issuing any press releases or otherwise making public
statements with respect to the transactions contemplated hereby and in making
any filings with any federal or state governmental or regulatory agency or with
the Nasdaq or Amex with respect thereto; provided, however, that each party
shall have the right, in the event of any disagreement between nStor and the
Company about the timing or content of any such releases or other public
statements or filings, to issue such releases or other public statements or to
file such filings as it is advised by counsel that it is required to make to
assure continued compliance with federal and state securities laws.

    11.2   Notices.   All notices and other communications hereunder shall be
in writing and shall be deemed given if delivered personally, telecopied (which
is confirmed), sent by overnight courier (provided proof of delivery) or mailed
by registered or certified mail (return receipt requested) to the parties at the
following addresses (or at such other address for a party as shall be specified
by light notice):

          (a)  If to nStor or the nStor Subsidiary, to:

               nStor Technologies, Inc.
               100 Century Blvd.
               West Palm Beach, Florida  33417
               Attention: Irwin Levy, Chairman
               Telecopy No.: (561) 640-3160

               With a copy (which shall not constitute effective
               notice) to:

               Akerman, Senterfitt & Eidson, P.A.
               450 East Las Olas Blvd.
               Ft. Lauderdale, Florida 33301
               Attention:  Donn Beloff, Esq.
               Telecopy No.: (954) 463-2224

                                      A-33
<PAGE>

          (b)  If to the Company prior to the Closing Date, to:

               Andataco, Inc.
               10140 Mesa Rim Road
               San Diego, CA 92121
               Attention: Harris Ravine, Chief Executive Officer
               Telecopy No.: (704) 714-4187

               With a copy (which shall not constitute effective
               notice) to:

               Cooley Godward LLP
               4365 Executive Drive, Suite 1100
               San Diego, CA  92121
               Attention:  Jeremy D. Glasser, Esq.
               Telecopy No.:  (858) 453-3555

    11.3   Successors and Assigns.   This Agreement shall be binding upon and
shall inure to the benefit of the parties and their respective successors,
heirs, executors, administrators, legal representatives and permitted assigns,
provided that neither this Agreement nor any rights or obligations hereunder may
be assigned without the written consent of the other parties except that (i)
nStor may assign any or all of its rights hereunder to any Affiliate of nStor,
and (ii) the nStor Subsidiary may assign any or all of its rights hereunder to
any other newly organized corporation under the laws of the State of Delaware or
Florida, all of the capital stock of which is owned directly or indirectly by
nStor or an Affiliate of nStor. Nothing in this Agreement, express or implied,
is intended to or shall confer upon any Person (other than the parties hereto,
any permitted assignee, holders of shares of Capital Stock, holders of Options
and indemnitees) any rights, benefits or remedies of any nature whatsoever under
or by reason of this Agreement, and no Person (other than as so specified) shall
be deemed a third party beneficiary under or by reason of this Agreement.

    11.4   Further Assurances.   Each party hereto agrees to use its best
efforts to take, or cause to be taken, all actions and to do, or cause to be
done, all things that may be necessary or appropriate to consummate and to make
effective the transactions contemplated by this Agreement, including, without
limitation, the execution and delivery of such other certificates, agreements,
instruments and documents and the provision of all such information as may be
necessary or appropriate as aforesaid.

    11.5   Specific Performance.   All remedies, either under this Agreement or
by law or otherwise afforded to any party hereto, shall be cumulative and not
alternative. Each party hereto acknowledges and agrees to any breach of the
agreements and covenants contained in this Agreement would cause irreparable
injury to the other parties hereto for which such parties would have no adequate
remedy at law. In addition to any other remedy to which any party hereto may be

                                      A-34
<PAGE>

entitled, each party hereto agrees that temporary and permanent injunctive and
other equitable relief and specific performance may be granted without proof of
actual damages or inadequacy of legal remedy in any proceeding that may be
brought to enforce any of the provisions of this Agreement.

    11.6   Severability.   If any provision of this Agreement or the application
of any such provision to any Person or circumstance, shall be declared
judicially to be invalid, unenforceable or void, such decision shall not have
the effect of invalidating or voiding the remainder of this Agreement, it being
the intent and agreement of the parties that this Agreement shall be deemed
amended by modifying such provision to the extent necessary to render it valid,
legal and enforceable while preserving its intent or, if such modification is
not possible, by substituting therefor another provision that is valid, legal
and enforceable and that achieves the same objective.

    11.7   Entire Agreement.   This Agreement (including the exhibits and
schedules hereto) and the documents and instruments executed and delivered in
connection herewith constitute the entire agreement among the parties with
respect to the subject matter hereof and supersede all prior and contemporaneous
agreements and understandings, whether written or oral, among the parties or any
of them with respect to the subject matter hereof, and there are no
representations, understandings or agreements relating to the subject matter
hereof that are not fully expressed in this Agreement and the documents and
instruments executed and delivered in connection herewith. All exhibits and
schedules attached to this Agreement are expressly made a part of, and
incorporated by reference into, this Agreement.

    11.8   Governing Law.   This Agreement shall be construed in accordance
with, and the rights of the parties shall be governed by, the substantive laws
of the State of Florida, without giving effect to any choice-of-law rules that
may require the application of the laws of another jurisdiction.

    11.9   Certain Construction Rules.   The article and section headings and
the table of contents contained in this Agreement are for convenience of
reference only and shall in no way define, limit, extend or describe the scope
or intent of any provisions of this Agreement. Whenever the context may require,
any pronoun used in this Agreement shall include the corresponding masculine,
feminine or neuter forms, and the singular form of nouns, pronouns and verbs
shall include the plural and vice versa. In addition, as used in this Agreement,
unless otherwise provided to the contrary, (a) all references to days, months or
years shall be deemed references to calendar days, months or years and (b) any
reference to a "Section," "Article," "Exhibit" or "Schedule" shall be deemed to
refer to a section or article of this Agreement or an exhibit or schedule
attached to this Agreement. The words "hereof," "herein," and "hereunder" and
words of similar import referring to this Agreement refer to this Agreement as a
whole and not to any particular provision of this Agreement. Unless otherwise
specifically provided for herein, the term "or" shall not be deemed to be
exclusive.

    11.10   Survival of Covenants, Representations and Warranties.   The
respective covenants, representations and warranties of nStor, the Company and
the nStor Subsidiary contained

                                      A-35
<PAGE>

herein shall expire and be terminated on the Effective Time, unless otherwise
specifically herein provided.

    11.11   Counterparts.   This Agreement may be executed in multiple
counterparts, each of which shall be deemed an original and all of which taken
together shall constitute one instrument binding on all the parties,
notwithstanding that all the parties are not signatories to the original or the
same counterpart.

                                      A-36
<PAGE>

    IN WITNESS WHEREOF, this Agreement has been duly executed as of the
date first above written.

               THE COMPANY:

               ANDATACO, INC.

               By:  /s/  Harris Ravine
                  _____________________________
                  Harris Ravine
                  Chief Executive Officer


               NSTOR:

               NSTOR TECHNOLOGIES, INC.

               By:  /s/  Lawrence F. Steffann
                  _____________________________
                  Lawrence F. Steffann
                  President


               THE NSTOR SUBSIDIARY:
               NTI ACQUISITION CORP.

               By:  /s/  Lawrence F. Steffann
                  _____________________________
                  Lawrence F. Steffann
                  President





                                      A-37
<PAGE>

                                 SCHEDULE 1.1

                                  DEFINITIONS


    "33 ACT" means the Securities Act of 1933, as amended.

    "AFFILIATE" means, with respect to any specified Person, any other Person
that, directly or indirectly, through one or more intermediaries, controls, is
controlled by or is under common control with such specified Person. For the
purposes of this definition, "control" (including, with correlative meanings,
the terms "controlled by" and "under common control with"), as used with respect
to any Person, means the possession, directly or indirectly, of the power to
direct or cause the direction of the management or policies of such Person,
whether through the ownership of voting securities, by Contract or otherwise.

    "AGREEMENT" has the meaning specified in the preamble hereof.

    "AMEX"  has the meaning specified in SECTION 3.1(a).

    "AVERAGE PRICE" has the meaning specified in SECTION 3.1(a).

    "CAPITAL STOCK" means the Company's capital stock.

    "CCC" has the meaning specified in SECTION 3.2(a).

    "CERCLA" means the Comprehensive Environmental Response, Compensation
and Liability Act of 1980, as amended, and as in effect on the date hereof.

    "CERTIFICATES" has the meaning specified in SECTION 3.3(b).

    "CLOSING" has the meaning specified in SECTION 2.2.

    "CLOSING DATE" means the date on which the Closing occurs.

    "CODE" means the Internal Revenue Code of 1986, as amended from time to
time, and the regulations promulgated and the rulings issued thereunder.

    "COMPANY" has the meaning specified in the preamble hereof.

    "COMPANY 10-K" has the meaning specified in SECTION 6.2(c).

    "COMPANY COMMON STOCK" has the meaning specified in the recitals
hereof.




                                      A-38
<PAGE>

    "COMPANY FILED SEC DOCUMENTS" has the meaning specified in SECTION 4.7.

    "COMPANY OPTION PLANS" has the meaning specified in SECTION 3.6(a).

    "COMPANY SEC DOCUMENTS" has the meaning specified in SECTION 4.6.

    "COMPANY SPECIAL MEETING" has the meaning specified in SECTION 6.4(b).

    "CONFIDENTIALITY CONTRACT" has the meaning specified in SECTION
4.12(c)(ii).

    "CONSENT" means any consent, approval, permit, notice, action,
authorization or giving of notice to any Person not a party to this Agreement.

    "DISSENTING SHARES" has the meaning specified in SECTION 3.2(a).

    "EFFECTIVE TIME" means the date and time at which the Merger becomes
effective as provided in SECTION 2.2.

    "EXCHANGE ACT" means the Securities Exchange Act of 1934, as amended.

    "EXCHANGE AGENT" has the meaning specified in SECTION 3.3(a).

    "EXCHANGE FUND" has the meaning specified in SECTION 3.3(a).

    "EXCHANGE RATIO" has the meaning specified in SECTION 3.1(a).

    "FBCA" has the meaning specified in SECTION 2.1.

    "GAAP" means generally accepted accounting principles and practices which
are recognized as such by the American Institute of Certified Public Accountants
acting through its Accounting Principles Board or other appropriate board or
committee (other than the Emerging Standards Committee), and which are
consistently applied for all periods so as to present fairly the financial
condition, the results of operations and the cash flows of the relevant Person
or Persons.

    "INDEMNIFIED LIABILITIES" has the meaning specified in SECTION 10.2(b).

    "INDEMNIFIED PARTIES" has the meaning specified in SECTION 10.2(b).

    "LEGAL REQUIREMENT" means any domestic, foreign or international law,
treaty, ordinance, statute, rule or regulation of any Tribunal or any Order.

    "LIEN" means, with respect to any properties or assets, any mortgage,
pledge, hypothecation, assignment, security interest, lien, tax lien,
assessment, lease, sublease, adverse claim, levy, charge,




                                      A-39
<PAGE>

liability or encumbrance, or preference, priority or other security agreement or
preferential arrangement of any kind or character whatsoever (including, without
limitation, any conditional sale or other title retention agreement, any
financing lease having substantially the same economic effect as any of the
foregoing, and the filing of, or agreement to give, any financing statement
under the Uniform Commercial Code or comparable law of any jurisdiction) in
respect of such properties or assets.

    "MBCL" has the meaning specified in SECTION 2.1.

    "MERGER" has the meaning specified in SECTION 2.1.

    "MERGER CONSIDERATION" has the meaning specified in SECTION 3.3(b).

    "NASDAQ" has the meaning specified in SECTION 4.4(b).

    "NOTICE OF SUPERIOR PROPOSAL" has the meaning specified in SECTION
6.3(b).

    "nSTOR" has the meaning specified in the preamble hereof.

    "nSTOR FILED SEC DOCUMENTS" has the meaning specified in SECTION 5.8.

    "nSTOR OPTIONS" means options to purchase shares of nStor Common Stock
as granted pursuant to nStor's 1996 Stock Option Plan that are described in
Schedule 5.4.

    "nSTOR SEC DOCUMENTS" has the meaning specified in SECTION 5.7.

    "nSTOR NOTES" means promissory notes issued by nStor that are
convertible into nStor Common Stock and are described on Schedule 5.4.

    "nSTOR SUBSIDIARY" has the meaning specified in the preamble hereof.

    "nSTOR WARRANTS" means warrants to purchase shares of nStor Common
Stock that are described on Schedule 5.4.

    "OPTIONS" means options of the Company to purchase shares of Company
Common Stock, as granted pursuant to the Company Option Plan that are described
in Schedule 4.3.

    "ORDER" means any decision, judgment, order, writ, injunction, decree,
award or determination of any Tribunal.

    "PERSON" means any corporation, association, partnership, joint
venture, organization, individual, business, trust or any other entity or
organization of any kind or character, including a Tribunal.

                                      A-40
<PAGE>

    "PRE-CLOSING PERIOD" has the meaning specified in SECTION 6.2(a).

    "PROXY STATEMENT" means the proxy statement relating to approval by the
shareholders of the Company of the Merger and approval by the shareholders of
nStor of the issuance of the Merger Consideration consisting of nStor Common
Stock.

    "REGISTRATION STATEMENT" has the meaning specified in SECTION 4.29.

    "SEC" means the Securities and Exchange Commission.


    "SUPERIOR PROPOSAL" has the meaning specified in SECTION 6.3(b).

    "SURVIVING CORPORATION" has the meaning specified in SECTION 2.1.

    "TAKEOVER PROPOSAL" has the meaning specified in SECTION 6.3(a).

    "TAXES" means all taxes, charges, fees, levies or other similar assessments
or liabilities (including, without limitation, income, receipts, ad valorem,
value added, excise, property (whether real property or personal property),
windfall profit, sales, occupation, service, stamp, use, licensing, withholding,
employment, payroll, share, capital, surplus, franchise, occupational or other
taxes imposed by any Tribunal, whether computed on a separate, consolidated,
unitary or combined basis or in any other manner, and includes any interest,
fines, penalties, assessments, deficiencies, or additions to tax .

    "TRIBUNAL" means any government, any arbitration panel, any court or any
governmental department, commission, board, bureau, agency or instrumentality of
the United States or any foreign or domestic state, province, commonwealth,
nation, territory, possession, country, parish, town, township, village or
municipality.

    "WARRANTS" means warrants of the Company to purchase shares of Company
Common Stock that are described in the Company Disclosure Schedule.

                                      A-41

<PAGE>

                                                                    EXHIBIT 10.1
                              AMENDMENT NO. 4 TO
                              ------------------

                                LOAN AGREEMENT
                                --------------


          This Amendment No. 4 to Loan Agreement ("Amendment") dated as of July
                                                   ---------
13, 1999, is made by and between anDATAco of California, Inc., a California
corporation ("Borrower"), and Wells Fargo Credit, Inc., successor in interest to
              --------
Wells Fargo Bank, National Association ("Lender").
                                         ------


                                   RECITALS
                                   --------

     This Amendment is made with reference to the following facts:

     A.   Borrower is currently indebted to Lender pursuant to the terms and
conditions of that certain Loan Agreement between Borrower and Lender dated as
of April 30, 1998 (as amended from time to time, the "Loan Agreement").
                                                      --------------
Capitalized terms used herein and not otherwise defined shall have the meanings
set forth for such terms in the Loan Agreement.

     B.   Borrower has defaulted under the Loan Agreement.  Borrower failed to
maintain a Tangible Net Worth of at least $1,400,000.00 on April 30, 1999 as
required by Section 8.10(a) of the Loan Agreement (the "Existing Borrower
            ---------------                             -----------------
Default").  Lender sent to Borrower and Guarantor a notice of the Existing
- -------
Borrower Default on June 11, 1999 (the "Default Notice", which notice
                                        --------------
erroneously referred to Borrower's failure to maintain a Tangible Net Worth of
at least $1,200,000.00 at all times during the period of January 31, 1999
through April 29, 1999), in which notice Lender informed Borrower and Guarantor,
among other things, of Lender's election to apply the default interest rate (the
"Default Rate") effective on the date of the Default Notice.
 ------------

     C.   W. David Sykes, an individual ("Sykes") has defaulted under that
                                         -----
certain Subordination Agreement entered into as of April 30, 1998 by Sykes in
favor of Lender in connection with the Loan Agreement (as amended from time to
time, the "Sykes Subordination Agreement").   Sykes transferred to nStor
           -----------------------------
Technologies, Inc., a Delaware corporation, its interest in that certain
Subordinated Promissory Note dated as of February 10, 1997 in the principal
amount of $5,195,548.87 executed by Borrower and payable to Sykes.  Such
transfer (the "Existing Sykes Default", and together with the Existing Borrower
               ----------------------
Default, the "Existing Defaults") violated the last sentence of Section 4 of the
              -----------------                                 ---------
Sykes Subordination Agreement.

     D.   Reference to the Existing Defaults is not deemed to refer to or
encompass all defaults that may currently exist under the Loan Agreement or
under any other document executed in connection therewith.

                                      -1-
<PAGE>

     E.   Subject to the terms and conditions set forth herein, (i) Borrower and
Lender have agreed to amend the Loan Agreement as set forth below, and (ii)
Lender is willing (A) to waive the Existing Defaults and (B) to discontinue the
accrual of interest at the Default Rate on the outstanding principal balance of
that certain Second Amended and Restated Line of Credit Note dated December 14,
1998 by Borrower in favor of Lender (as amended from time to time, the "Note")
                                                                        ----
as a result of the Existing Borrower Default.

                                   AGREEMENT
                                   ---------

     NOW, THEREFORE, in consideration of the mutual covenants and benefits
contained herein, and for other good and valuable consideration, the receipt and
sufficiency of which are acknowledged, Borrower and Lender agree as follows:

     1.   AMENDMENTS OF LOAN AGREEMENT
          ----------------------------

               1.1  Section 1.2.  Section 1.2 of the Loan Agreement is amended
                    -----------   -----------
to read in full as follows:

                    "1.2  'Applicable Inventory Advance Rate' shall mean, as
applicable, (i) the sum of twenty-five percent (25%) of the Value of Eligible
Inventory, until the earlier to occur of (A) July 16, 1999 and (B) Lender's
confirmation of an equity infusion into Borrower in the amount of $500,000 in
cash subsequent to July 9, 1999 (the earlier to occur of (A) and (B) shall be
                                                          -       -
referred to as the "Advance Rate Change Date"), or (ii) at all times after the
                    ------------------------
Advance Rate Change Date, the sum of twenty-three percent (23%) of the Value of
Eligible Inventory."

               1.2  Section 1.4.
                    -----------

                    (a)  Section 1.4(B) of the Loan Agreement is amended to
                         --------------
read in full as follows:

                              "(B)  (i) during the period of March 22, 1999
                         through September 30, 1999, the lesser of (a) Eighty-
                         five percent (85%) of the Net Amount of Eligible
                         Foreign Accounts, or (b) an amount equal to $400,000,
                         and (ii) during any other period during the term of
                         this Agreement, $0; plus"
                                             ----

                    (b)  Section 1.4(C) of the Loan Agreement is amended to
                         --------------
read in full as follows:

                              "(C)  the lesser of (i) the Applicable Inventory
                         Advance Rate, or (ii) an amount equal to $1,750,000;
                         less"
                         ----

               1.3  Section 8.10(a).  Section 8.10(a) of the Loan Agreement is
                    ---------------   ---------------
amended to read in full as follows:

                                      -2-
<PAGE>

                         "(a)  Tangible Net Worth not at any time during any
                    period specified below, or on any date specified below as
                    applicable, less than the amount set forth opposite such
                    period or date, as applicable, to be measured (i) at all
                    times prior to July 31, 1999, as of the end of each fiscal
                    quarter of Borrower, commencing with the fiscal quarter
                    ending July 31, 1998, and (ii) on and at all times
                    subsequent to July 31, 1999, as of the end of each fiscal
                    month of Borrower, commencing with the fiscal month ending
                    July 31, 1999:

                    Period or Date                    Minimum Tangible Net Worth
                    --------------                    --------------------------

          July 31, 1998 through October 30, 1998                $ 1,000,000.00
          October 31, 1998 through January 30, 1999             $ 1,000,000.00
          January 31, 1999 through April 29, 1999               $ 1,200,000.00
          April 30, 1999 through July 30, 1999                  $            0
          July 31, 1999 through October 30, 1999                $   900,000.00
          October 31, 1999 through January 30, 2000             $ 1,150,000.00
          January 31, 2000                                      $ 1,900,000.00
          February 1, 2000 through April 29, 2000               $ 3,600,000.00
          April 30, 2000 through July 30, 2000                  $ 3,900,000.00
          July 31, 2000 through October 30, 2000                $ 4,200,000.00
          October 31, 2000 and thereafter                       $ 4,500,000.00"


     2.   CERTAIN FEES CONCERNING FOREIGN ACCOUNTS
          ----------------------------------------

             Borrower agrees to pay to Lender a fee of $2,000.00 in connection
with the inclusion of Eligible Foreign Accounts in the definition of "Borrowing
Base", payable as follows: (i) $2,000.00 payable by Borrower to Lender on August
1, 1999. Each portion of such fee is earned when due and is nonrefundable.

     3.   EQUITY INFUSION
          ---------------

             Borrower agrees to cause nStor Technologies, Inc., a Delaware
corporation, to make to Borrower an equity infusion in the amount of $500,000.00
in cash on or before July 16, 1999.

     4.   CONDITIONS PRECEDENT
          --------------------

             The effectiveness of this Amendment and Lender's agreements set
forth herein are subject to the satisfaction of each of the following conditions
precedent. Bank hereby agrees that, upon satisfaction of the following
conditions precedent, (i) the Existing Defaults will be deemed waived and (ii)
interest will no longer accrue on the outstanding principal balance under the
Note at the Default Rate as a result of the Existing Borrower Default.

                                      -3-
<PAGE>

          4.1  Documentation.  Borrower shall have delivered or caused to be
               -------------
delivered to Lender, at Borrower's sole cost and expense, the following, each of
which shall be in form and substance satisfactory to Lender:

               (a)  The executed original of this Amendment, including the
     consent of Guarantor attached hereto as Exhibit A; and
                                             ---------

               (b)  An original of a subordination agreement executed by nStor
     Technologies, Inc., a Delaware corporation, in favor of Lender; and

               (c)  Such additional agreements, certificates, reports,
     approvals, instruments, documents, consents and/or reaffirmations as Lender
     may reasonably request.

          4.2  Representations and Warranties.  All of Borrower's
               ------------------------------
representations and warranties contained herein shall be true and correct on and
as of the date of execution hereof and no Event of Default shall have occurred
and be continuing under the Loan Agreement or any of the other Loan Documents,
as modified hereby.

          4.3  Waiver Fee.  Borrower shall have paid to Lender a nonrefundable
               ----------
waiver fee in the amount of $15,000.00.


     5.   REPRESENTATIONS AND WARRANTIES
          ------------------------------

             Borrower makes the following representations and warranties to
Lender as of the date hereof, which representations and warranties shall survive
the execution, termination or expiration of this Amendment and shall continue in
full force and effect until the full and final satisfaction and discharge of all
obligations of Borrower to Lender under the Loan Agreement and the other Loan
Documents:

          5.1  Reaffirmation of Prior Representations and Warranties.  Borrower
               -----------------------------------------------------
hereby reaffirms and restates as of the date hereof, all of the representations
and warranties made by Borrower in the Loan Agreement and the other Loan
Documents, except to the extent such representations and warranties specifically
           ------
relate to an earlier date.

          5.2  No Default.  After giving effect to this Amendment, no Event of
               ----------
Default or other default has occurred and remains continuing under any of the
Loan Documents.

          5.3  Due Execution.  The execution, delivery and performance of this
               -------------
Amendment and any instruments, documents or agreements executed in connection
herewith are within the powers of Borrower, have been duly authorized by all
necessary action, and do not contravene any law or the articles of incorporation
or bylaws of Borrower, result in a breach of,

                                      -4-
<PAGE>

or constitute a default under, any contractual restriction, indenture, trust
agreement or other instrument or agreement binding upon Borrower.

          5.4  No Further Consent.  The execution, delivery and performance of
               ------------------
this Amendment and any documents or agreements executed in connection herewith
do not require any consent or approval not previously obtained of any
stockholder, beneficiary or creditor of Borrower.

          5.5  Binding Agreement.  This Amendment, and each of the other
               -----------------
instruments, documents and agreements executed in connection herewith constitute
the legal, valid and binding obligation of Borrower or other party thereto and
are enforceable against Borrower in accordance with their terms, except as such
                                                                 ------
enforceability may be limited by bankruptcy, insolvency, moratorium,
reorganization or similar laws or equitable principles relating to or limiting
creditors' rights generally.


     6.   MISCELLANEOUS
          -------------

          6.1  Recitals Incorporated.  The Recitals set forth above are
               ---------------------
incorporated into and are made a part of this Amendment.

          6.2  Further Assurances.  Borrower, at its sole cost and expense,
               ------------------
agrees to execute and deliver all documents and instruments and to take all
other actions as may be specifically provided for herein and as may be required
in order to consummate the purposes of this Amendment. Borrower shall
diligently and in good faith pursue the satisfaction of any conditions or
contingencies in this Amendment.

          6.3  No Third Parties.  Except as specifically provided herein, no
               ----------------   ------
third party shall be benefitted by any of the provisions of this Amendment; nor
shall any such third party have the right to rely in any manner upon any of the
terms hereof, and none of the covenants, representations, warranties or
agreements herein contained shall run in favor of any third party.

          6.4  Time is of the Essence.  Time is of the essence for the
               ----------------------
performance of all obligations and the satisfaction of all conditions of this
Amendment. The parties intend that all time periods specified in this Amendment
shall be strictly applied, without any extension (whether or not material)
unless specifically agreed to in writing by all parties hereto.

          6.5  Costs and Expenses.  In addition to the obligations of Borrower
               ------------------
under the Loan Agreement, Borrower agrees to pay all costs and expenses
(including without limitation reasonable attorneys' fees) expended or incurred
by Lender in connection with the negotiation, documentation and preparation of
this Amendment and any other documents executed in connection herewith, and in
carrying out the terms of this Amendment, whether incurred before or after the
effective date hereof.

                                      -5-
<PAGE>

          6.6   Integration; Interpretation.  The Loan Documents, including this
                ---------------------------
Amendment and the documents, instruments and agreements executed in connection
herewith, contain or expressly incorporate by reference the entire agreement of
the parties with respect to the matters contemplated herein and supersede all
prior negotiations, discussions and correspondence. The Loan Documents shall
not be modified except by written instrument executed by all parties.

          6.7   Counterparts and Execution.  This Amendment may be executed in
                --------------------------
counterparts, each of which shall be deemed an original, and all of which
together shall constitute one and the same instrument. However, this Amendment
shall not be binding on Lender until all parties have executed it.

          6.8   Governing Law.  This Amendment shall be governed by and
                -------------
construed in accordance with the laws of the State of California.

          6.9   Non-Impairment of Loan Documents.  On the date all conditions
                --------------------------------
precedent set forth herein are satisfied in full, this Amendment shall be a part
of the Loan Agreement.  Except as expressly provided in this Amendment or in any
other document, instrument or agreement executed by Lender, all provisions of
the Loan Documents shall remain in full force and effect, and Lender shall
continue to have all its rights and remedies under the Loan Documents.

          6.10  No Waiver.  Nothing herein shall be deemed a waiver by Lender of
                ---------
any Event of Default, other than the Existing Borrower Default, and nothing
herein shall be deemed a waiver by Lender of any other default under the Loan
Agreement or any document executed in connection with the Loan Agreement, other
than the Existing Sykes Default. No delay or omission of Lender to exercise any
right, remedy or power under any of the Loan Documents shall impair such right,
remedy or power or be construed to be a waiver of any default or an acquiescence
therein, and single or partial exercise of any such right, remedy or power shall
not preclude other or further exercise thereof or the exercise of any other
right, remedy or power. No waiver of any term, covenant, or condition shall be
deemed to waive Lender's right to enforce such term, covenant or condition at
any other time.

          6.11  Successors and Assigns.  The terms of this Amendment shall be
                ----------------------
binding upon and inure to the benefit of the successors and assigns of the
parties to this Amendment.

          IN WITNESS WHEREOF, this Amendment has been duly executed as of the
date first set forth above.

                                      -6-
<PAGE>

ANDATACO OF CALIFORNIA, INC.,           WELLS FARGO CREDIT, INC.
a California corporation


By:    /s/ Diane Wong                   By:    /s/ Angelo Samperisi
   -----------------------------           --------------------------------
           Diane Wong                              Angelo Samperisi

Title: Vice President of Finance        Title: Vice President
      --------------------------               ----------------------------
      and Corporate Controller
      --------------------------

                                      -7-
<PAGE>

                                   Exhibit A

                             Consent of Guarantor





     In order to induce Lender to agree to the terms of the Amendment, Guarantor
(a) acknowledges receipt of a copy of the Amendment, (b) consents to Borrower
entering into the Amendment and all of the other documents, instruments and
agreements now or hereafter executed in connection therewith, (c) agrees that
nothing contained in the Amendment, or in any other document, instrument or
agreement executed in connection therewith, shall serve to diminish, alter,
amend or affect in any way Guarantor's obligations under that certain First
Amended and Restated Continuing Guaranty dated as of December 14, 1998 by
Guarantor in favor of Lender (the "Guaranty"). Guarantor expressly and
                                   --------
knowingly reaffirms its liability under the Guaranty and acknowledges that it
has no defense, offset or counterclaim against Lender with respect to the
Guaranty.


                                        "Guarantor"


                                        ANDATACO, INC.


                                        By: /s/ Diane Wong
                                            ----------------------------------
                                                Diane Wong

                                        Title: Vice President  Finance and
                                              --------------------------------

                                               Corporate Controller
                                               --------------------

                                      -8-

<PAGE>

                                                                    EXHIBIT 10.2
                            SUBORDINATION AGREEMENT


     THIS SUBORDINATION AGREEMENT (this "Agreement") is entered into by and
among ANDATACO OF CALIFORNIA, INC., a California corporation ("Borrower"), NSTOR
TECHNOLOGIES, INC., a Delaware corporation ("Creditor"), and WELLS FARGO CREDIT,
INC. ("Bank").


                                   RECITALS

     A.  Borrower is indebted to Creditor, and Borrower proposes to obtain
credit or has obtained credit from Bank; and

     B.  Bank has indicated that it will extend or continue credit to Borrower
if certain conditions are met, including without limitation, the requirement
that Creditor execute this Agreement.

     NOW, THEREFORE, as an inducement to Bank to extend or continue to extend
credit and for other valuable consideration, the parties hereto agree as
follows:

     1.  INDEBTEDNESS SUBORDINATED.  Creditor subordinates all Indebtedness now
or at any time hereafter owing from Borrower to Creditor (including without
limitation, interest thereon which may accrue subsequent to Borrower becoming
subject to any state or federal debtor-relief statute) ("Junior Debt") to all
Indebtedness now or at any time hereafter owing from Borrower to Bank ("Senior
Debt"). Creditor irrevocably consents and directs that all Senior Debt shall be
paid in full prior to Borrower making any payment on any Junior Debt, except
such payments as are expressly permitted by Section 3 of this Agreement.
Creditor will, and Bank is authorized in the name of Creditor from time to time
to, execute and file such financing statements and other documents as Bank may
require in order to give notice to other persons and entities of the terms and
provisions of this Agreement. As long as this Agreement is in effect, Creditor
will not take any action or initiate any proceedings, judicial or otherwise, to
enforce Creditor's rights or remedies with respect to any Junior Debt, including
without limitation, any action to enforce remedies with respect to any
collateral securing any Junior Debt or to obtain any judgment or prejudgment
remedy against Borrower or any such collateral.

     2.  INDEBTEDNESS DEFINED.  The word "Indebtedness" is used herein in its
most comprehensive sense and includes any and all advances, debts, obligations
and liabilities of Borrower heretofore, now or hereafter made, incurred or
created, whether voluntary or involuntary and however arising, whether due or
not due, absolute or contingent, liquidated or unliquidated, determined or
undetermined, and whether Borrower may be liable individually or jointly with
others, including without limitation, obligations and liabilities arising from
notes, repurchase agreements and trust receipts.

     3.  RESTRICTION OF PAYMENT OF JUNIOR DEBT; DISPOSITION OF PAYMENTS RECEIVED
BY CREDITOR.  Borrower will not make, and Creditor will not accept or receive,
any payment or benefit in cash, by setoff or otherwise, directly or indirectly,
on account of principal, interest or any other amounts owing on any Junior Debt.
If any payment is made in violation of this Agreement, Creditor shall promptly
deliver the same to Bank in the form received, with any endorsement or
assignment necessary for the transfer of such payment or amounts setoff from
Creditor to Bank, to be either (in Bank's sole discretion) held as cash
collateral securing the Senior Debt or applied in reduction of the Senior Debt
in such order as Bank shall determine, and until so delivered, Creditor shall
hold such payment in trust for and on behalf of, and as the property of, Bank.
<PAGE>

     4.  DISPOSITION OF EVIDENCE OF INDEBTEDNESS.  If there is any existing
promissory note or other evidence of any of the Junior Debt, or if any
promissory note or other evidence of Indebtedness is executed at any time
hereafter with respect thereto, then Borrower and Creditor will mark the same
with a legend stating that it is subject to this Agreement, and if asked to do
so, will deliver the same to Bank. Creditor shall not, without Bank's prior
written consent, assign, transfer, hypothecate or otherwise dispose of any claim
it now has or may at any time hereafter have against Borrower at any time that
any Senior Debt remains outstanding and/or Bank remains committed to extend any
credit to Borrower.

     5.  AGREEMENT TO BE CONTINUING; APPLIES TO BORROWER'S EXISTING INDEBTEDNESS
AND ANY INDEBTEDNESS HEREAFTER ARISING.  This Agreement shall be a continuing
agreement and shall apply to any and all Indebtedness of Borrower to Bank or
Creditor now existing or hereafter arising, including any Indebtedness arising
under successive transactions, related or unrelated, and notwithstanding that
from time to time all Indebtedness theretofore existing may have been paid in
full.

     6.  TERMINATION BY CREDITOR.  Creditor may, to the extent provided herein,
terminate this Agreement by delivering written notice to Bank.  Any such notice
must be sent to Bank by registered U.S. mail, postage prepaid, addressed to its
office at 245 S. Los Robles Avenue, Suite 600, Pasadena, California, Attn:
ANDATACO Account Officer, or at such other address as Bank shall from time to
time designate. If such notice is received by Bank, this Agreement shall
terminate as of the date of receipt, except that the obligations of Creditor and
the rights of Bank hereunder shall continue with respect to all Senior Debt
which existed at the time of Bank's receipt of such notice, or thereafter arose
pursuant to any agreement to extend credit by which Bank is bound at the time of
its receipt of such notice, and any extensions, renewals or modifications of any
such then existing or committed Senior Debt, including without limitation,
modifications to the amount of principal or interest payable on any Senior Debt
and the release of any security for or any guarantors of all or any portion of
any Senior Debt.

     7.  REPRESENTATIONS AND WARRANTIES; INFORMATION.  Borrower and Creditor
represent and warrant to Bank that: (a) no interest in the Junior Debt has been
assigned or otherwise transferred to any person or entity; (b) payment of the
Junior Debt has not been heretofore subordinated to any other creditor of
Borrower; and (c) Creditor has the requisite power and authority to enter into
and perform its obligations under this Agreement. Creditor further represents
and warrants to Bank that Creditor has established adequate, independent means
of obtaining from Borrower on a continuing basis financial and other information
pertaining to Borrower's financial condition. Creditor agrees to keep adequately
informed from such means of any facts, events or circumstances which might in
any way affect Creditor's risks hereunder, and Creditor agrees that Bank shall
have no obligation to disclose to Creditor information or material about
Borrower which is acquired by Bank in any manner. Bank may, at Bank's sole
option and without obligation to do so, disclose to Creditor any information or
material relating to Borrower which is acquired by Bank by any means, and
Borrower hereby agrees to and authorizes any such disclosure by Bank.

     8.  TRANSFER OF ASSETS OR REORGANIZATION OF BORROWER.  If any petition is
filed or any proceeding is instituted by or against Borrower under any
provisions of the Bankruptcy Reform Act, Title 11 of the United States Code, or
any other or similar law relating to bankruptcy, insolvency, reorganization or
other relief for debtors, or generally affecting creditors' rights, or seeking
the appointment of a receiver, trustee, custodian or liquidator of or for
Borrower or any of its assets, any payment or distribution of any of Borrower's
assets, whether in cash, securities or any other property, which would be
payable or deliverable with respect to any Junior Debt, shall be paid or
delivered to Bank until all Senior Debt is paid in full. Creditor grants to
Bank the right to enforce, collect and receive any such payment or distribution
and to give releases or acquittances therefor, and Creditor authorizes Bank as
its attorney-in-fact to vote and prove the Junior Debt in any of the above-
described proceedings or in any meeting of creditors of Borrower relating
thereto.
<PAGE>

     9.   OTHER AGREEMENTS; NO THIRD PARTY BENEFICIARIES.  Bank shall have no
direct or indirect obligations to Creditor of any kind with respect to the
manner or time in which Bank exercises (or refrains from exercising) any of its
rights or remedies with respect to the Senior Debt, Borrower or any of
Borrower's assets. Creditor understands that there may be various agreements
between Bank and Borrower evidencing and governing the Senior Debt, and Creditor
acknowledges and agrees that such agreements are not intended to confer any
benefits on Creditor. Creditor further acknowledges that Bank may administer the
Senior Debt and any of Bank's agreements with Borrower in any way Bank deems
appropriate, without regard to Creditor or the Junior Debt. Creditor waives any
right Creditor might otherwise have to require a marshalling of any security
held by Bank for all or any part of the Senior Debt or to direct or affect the
manner or timing with which Bank enforces any of its security. Nothing in this
Agreement shall impair or adversely affect any right, privilege, power or remedy
of Bank with respect to the Senior Debt, Borrower or any assets of Borrower,
including without limitation, Bank's right to: (a) waive, release or subordinate
any of Bank's security or rights; (b) waive or ignore any defaults by Borrower;
and/or (c) restructure, renew, modify or supplement the Senior Debt, or any
portion thereof, or any agreement with Borrower relating to any Senior Debt. All
rights, privileges, powers and remedies of Bank may be exercised from time to
time by Bank without notice to or consent of Creditor.

     10.   BREACH OF AGREEMENT BY BORROWER OR CREDITOR.  In the event of any
breach of this Agreement by Borrower or Creditor, then and at any time
thereafter Bank shall have the right to declare immediately due and payable all
or any portion of the Senior Debt without presentment, demand, notice of
nonperformance, protest, notice of protest or notice of dishonor, all of which
are hereby expressly waived by Borrower and Creditor. No delay, failure or
discontinuance of Bank in exercising any right, privilege, power or remedy
hereunder shall be deemed a waiver of such right, privilege, power or remedy;
nor shall any single or partial exercise of any such right, privilege, power or
remedy preclude, waive or otherwise affect the further exercise thereof or the
exercise of any other right, privilege, power or remedy. Any waiver, permit,
consent or approval of any kind by Bank with respect to this Agreement must be
in writing and shall be effective only to the extent set forth in such writing.

     11.  LIQUIDATED DAMAGES.  Inasmuch as the actual damages which could result
from a breach by Creditor of its duties under Section 3 hereof are uncertain and
would be impractical or extremely difficult to fix, Creditor shall pay to Bank,
in the event of any such breach by Creditor, as liquidated and agreed damages,
and not as a penalty, all sums received by Creditor in violation of this
Agreement on account of the Junior Debt, which sums represent a reasonable
endeavor to estimate a fair compensation for the foreseeable losses that might
result from such a breach.

     12.  COSTS, EXPENSES AND ATTORNEYS' FEES.  If any party hereto institutes
any arbitration or judicial or administrative action or proceeding to enforce
any provisions of this Agreement, or alleging any breach of any provision hereof
or seeking damages or any remedy, the losing party or parties shall pay to the
prevailing party or parties all costs and expenses, including reasonable
attorneys' fees (to include outside counsel fees and all allocated costs of such
prevailing party's in-house counsel), expended or incurred by the prevailing
party or parties in connection therewith, whether incurred at the trial or
appellate level, in an arbitration proceeding or otherwise, and including any of
the foregoing incurred in connection with any bankruptcy proceeding (including
without limitation, any adversary proceeding, contested matter or motion brought
by Bank or any other person) relating to Borrower, Creditor or any other person
or entity.

     13.  SUCCESSORS; ASSIGNS; AMENDMENT.  This Agreement shall be binding upon
and inure to the benefit of the heirs, executors, administrators, legal
representatives, successors and assigns of the parties. This Agreement may be
amended or modified only in writing signed by all parties hereto.
<PAGE>

     14.  CONSTRUCTION.  All words used herein in the singular shall be deemed
to have been used in the plural where the context so requires.

     15.  SEVERABILITY OF PROVISIONS.  If any provision of this Agreement shall
be held to be prohibited by or invalid under applicable law, such provision
shall be ineffective only to the extent of such prohibition or invalidity,
without invalidating the remainder of such waiver or other provision or any
remaining provisions of this Agreement.

     16.  GOVERNING LAW.  This Agreement shall be governed by and construed in
accordance with the laws of the State of California.

     17.  ARBITRATION.

     (a) Arbitration.  Upon the demand of any party, any Dispute shall be
         -----------
resolved by binding arbitration (except as set forth in (e) below) in accordance
with the terms of this Agreement. A "Dispute" shall mean any action, dispute,
claim or controversy of any kind, whether in contract or tort, statutory or
common law, legal or equitable, now existing or hereafter arising under or in
connection with, or in any way pertaining to, this Agreement and each other
document, instrument or contract required hereby or now or hereafter delivered
to Bank in connection herewith (collectively, the "Documents"), or any past,
present or future extensions of credit and other activities, transactions or
obligations of any kind related directly or indirectly to any of the Documents,
including without limitation, any of the foregoing arising in connection with
the exercise of any self-help, ancillary or other remedies pursuant to any of
the Documents. Any party may by summary proceedings bring an action in court to
compel arbitration of a Dispute. Any party who fails or refuses to submit to
arbitration following a lawful demand by any other party shall bear all costs
and expenses incurred by such other party in compelling arbitration of any
Dispute.

     (b)  Governing Rules.  Arbitration proceedings shall be administered by the
          ---------------
American Arbitration Association ("AAA") or such other administrator as the
parties shall mutually agree upon in accordance with the AAA Commercial
Arbitration Rules. All Disputes submitted to arbitration shall be resolved in
accordance with the Federal Arbitration Act (Title 9 of the United States Code),
notwithstanding any conflicting choice of law provision in any of the Documents.
The arbitration shall be conducted at a location in California selected by the
AAA or other administrator. If there is any inconsistency between the terms
hereof and any such rules, the terms and procedures set forth herein shall
control. All statutes of limitation applicable to any Dispute shall apply to any
arbitration proceeding. All discovery activities shall be expressly limited to
matters directly relevant to the Dispute being arbitrated. Judgment upon any
award rendered in an arbitration may be entered in any court having
jurisdiction; provided however, that nothing contained herein shall be deemed to
be a waiver by any party that is a bank of the protections afforded to it under
12 U.S.C. (S)91 or any similar applicable state law.

     (c)   No Waiver; Provisional Remedies, Self-Help and Foreclosure.  No
           ----------------------------------------------------------
provision hereof shall limit the right of any party to exercise self-help
remedies such as setoff, foreclosure against or sale of any real or personal
property collateral or security, or to obtain provisional or ancillary remedies,
including without limitation injunctive relief, sequestration, attachment,
garnishment or the appointment of a receiver, from a court of competent
jurisdiction before, after or during the pendency of any arbitration or other
proceeding. The exercise of any such remedy shall not waive the right of any
party to compel arbitration or reference hereunder.

     (d) Arbitrator Qualifications and Powers; Awards.  Arbitrators must be
         --------------------------------------------
active members of the California State Bar or retired judges of the state or
federal judiciary of California, with expertise in the substantive law
applicable to the subject matter of the Dispute. Arbitrators are empowered to
resolve Disputes by summary rulings in response to motions filed prior to the
final arbitration hearing. Arbitrators (i) shall resolve all Disputes in
accordance with the substantive law of the state of California, (ii) may grant
any remedy or relief that a court of
<PAGE>

the state of California could order or grant within the scope hereof and such
ancillary relief as is necessary to make effective any award, and (iii) shall
have the power to award recovery of all costs and fees, to impose sanctions and
to take such other actions as they deem necessary to the same extent a judge
could pursuant to the Federal Rules of Civil Procedure, the California Rules of
Civil Procedure or other applicable law. Any Dispute in which the amount in
controversy is $5,000,000 or less shall be decided by a single arbitrator who
shall not render an award of greater than $5,000,000 (including damages, costs,
fees and expenses). By submission to a single arbitrator, each party expressly
waives any right or claim to recover more than $5,000,000. Any Dispute in which
the amount in controversy exceeds $5,000,000 shall be decided by majority vote
of a panel of three arbitrators; provided however, that all three arbitrators
must actively participate in all hearings and deliberations.

     (e)  Judicial Review.  Notwithstanding anything herein to the contrary, in
          ---------------
any arbitration in which the amount in controversy exceeds $25,000,000, the
arbitrators shall be required to make specific, written findings of fact and
conclusions of law. In such arbitrations (i) the arbitrators shall not have the
power to make any award which is not supported by substantial evidence or which
is based on legal error, (ii) an award shall not be binding upon the parties
unless the findings of fact are supported by substantial evidence and the
conclusions of law are not erroneous under the substantive law of the state of
California, and (iii) the parties shall have in addition to the grounds referred
to in the Federal Arbitration Act for vacating, modifying or correcting an award
the right to judicial review of (A) whether the findings of fact rendered by the
arbitrators are supported by substantial evidence, and (B) whether the
conclusions of law are erroneous under the substantive law of the state of
California. Judgment confirming an award in such a proceeding may be entered
only if a court determines the award is supported by substantial evidence and
not based on legal error under the substantive law of the state of California.

     (f) Real Property Collateral; Judicial Reference.  Notwithstanding anything
         --------------------------------------------
herein to the contrary, no Dispute shall be submitted to arbitration if the
Dispute concerns indebtedness secured directly or indirectly, in whole or in
part, by any real property unless (i) the holder of the mortgage, lien or
security interest specifically elects in writing to proceed with the
arbitration, or (ii) all parties to the arbitration waive any rights or benefits
that might accrue to them by virtue of the single action rule statute of
California, thereby agreeing that all indebtedness and obligations of the
parties, and all mortgages, liens and security interests securing such
indebtedness and obligations, shall remain fully valid and enforceable. If any
such Dispute is not submitted to arbitration, the Dispute shall be referred to a
referee in accordance with California Code of Civil Procedure Section 638 et
seq., and this general reference agreement is intended to be specifically
enforceable in accordance with said Section 638. A referee with the
qualifications required herein for arbitrators shall be selected pursuant to the
AAA's selection procedures. Judgment upon the decision rendered by a referee
shall be entered in the court in which such proceeding was commenced in
accordance with California Code of Civil Procedure Sections 644 and 645.

     (g) Miscellaneous.  To the maximum extent practicable, the AAA, the
         -------------
arbitrators and the parties shall take all action required to conclude any
arbitration proceeding within 180 days of the filing of the Dispute with the
AAA. No arbitrator or other party to an arbitration proceeding may disclose the
existence, content or results thereof, except for disclosures of information by
a party required in the ordinary course of its business, by applicable law or
regulation, or to the extent necessary to exercise any judicial review rights
set forth herein. If more than one agreement for arbitration by or between the
parties potentially applies to a Dispute, the arbitration provision most
directly related to the Documents or the subject matter of the Dispute shall
control. This arbitration provision shall survive termination, amendment or
expiration of any of the Documents or any relationship between the parties.
<PAGE>

     IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of
July 13, 1999.

BORROWER:                                 BANK:


ANDATACO OF CALIFORNIA, INC.              WELLS FARGO CREDIT, INC.



By: /s/ Diane Wong                        By: Angelo Samperisi
    ---------------------------------         ---------------------------------

Title:  Vice President Finance and        Title:  Vice President
        ----------------------                    --------------
        Corporate Controller


CREDITOR:


NSTOR TECHNOLOGIES, INC.



By: /s/ Mark Levy
    -------------------------

Title: Vice President
       --------------

<TABLE> <S> <C>

<PAGE>

<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM FORM 10-Q
AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>

<S>                             <C>
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          OCT-31-1999
<PERIOD-START>                             MAY-01-1999
<PERIOD-END>                               JUL-31-1999
<CASH>                                          23,000
<SECURITIES>                                         0
<RECEIVABLES>                                8,004,000
<ALLOWANCES>                                         0
<INVENTORY>                                  4,945,000
<CURRENT-ASSETS>                            14,813,000
<PP&E>                                       2,665,000
<DEPRECIATION>                                       0
<TOTAL-ASSETS>                              22,276,000
<CURRENT-LIABILITIES>                       10,781,000
<BONDS>                                              0
                                0
                                          0
<COMMON>                                       254,000
<OTHER-SE>                                           0
<TOTAL-LIABILITY-AND-EQUITY>                22,276,000
<SALES>                                     14,486,000
<TOTAL-REVENUES>                            14,486,000
<CGS>                                       10,381,000
<TOTAL-COSTS>                                4,696,000
<OTHER-EXPENSES>                              (72,000)
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                             264,000
<INCOME-PRETAX>                              (783,000)
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                          (783,000)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                 (783,000)
<EPS-BASIC>                                   (0.03)
<EPS-DILUTED>                                   (0.03)


</TABLE>


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