EXHIBIT 31.2

                                 CERTIFICATIONS

I, Thomas L. Gruber, certify that:

1. I have reviewed this report on Form 10-Q of nStor Technologies, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a
material fact or omit to state a material fact  necessary to make the statements
made, in light of the  circumstances  under which such statements were made, not
misleading with respect to the period covered by this report;

3.  Based  on my  knowledge,  the  financial  statements,  and  other  financial
information included in this report, fairly present in all material respects the
financial  condition,  results of operations and cash flows of the registrant as
of, and for, the periods presented in this report;

4.  The  registrant's  other  certifying  officer  and  I  are  responsible  for
establishing and maintaining  disclosure  controls and procedures (as defined in
Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant and we have:

             a) Designed such disclosure controls and procedures, or caused such
        disclosure controls and procedures to be designed under our supervision,
        to  ensure  that  material   information  relating  to  the  registrant,
        including its consolidated  subsidiaries,  is made known to us by others
        within  those  entities,  particularly  during  the period in which this
        report is being prepared;

             b) Intentionally omitted.

             c)  Evaluated  the  effectiveness  of the  registrant's  disclosure
        controls and  procedures  and  presented in this report our  conclusions
        about the effectiveness of the disclosure controls and procedures, as of
        the end of the period  covered by this report based on such  evaluation;
        and

           d) Disclosed in this report any change in the  registrant's  internal
        control over financial  reporting that occurred during the  registrant's
        most  recent  fiscal  quarter  that  has  materially  affected,   or  is
        reasonably  likely  to  materially  affect,  the  registrant's  internal
        control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed,  based on our
most recent  evaluation of internal  control over  financial  reporting,  to the
registrant's auditors and the audit committee of registrant's board of directors
(or persons performing the equivalent function):

             a) All  significant  deficiencies  and material  weaknesses  in the
        design or operation of internal  control over financial  reporting which
        are reasonably  likely to adversely affect the  registrant's  ability to
        record, process, summarize and report financial information; and

             b) Any fraud, whether or not material,  that involves management or
        other employees who have a significant role in the registrant's internal
        control over financial reporting.



Date: August 4, 2003                          By: /s/ THOMAS L. GRUBER
                                              Thomas L. Gruber
                                              Chief Financial Officer