REGISTRATION RIGHTS AGREEMENT


       THIS REGISTRATION RIGHTS AGREEMENT ("Agreement") is entered into as of 
June 16, 1998 between ZITEL CORPORATION, a California corporation with 
offices at 47211 Bayside Parkway, Fremont, California  94538 (the "Company") 
and each of the entities listed under "Investors" on the signature page 
hereto (each an "Investor" and collectively the "Investors"), each with 
offices at the address listed under such Investor's name on Schedule I hereto.

                                W I T N E S S E T H:

       WHEREAS, pursuant to that certain Convertible Subordinated Debenture 
Purchase Agreement by and between the Company and the Investors (the 
"Purchase Agreement"), the Company initially has agreed to sell and issue to 
the Investors, and the Investors have agreed to purchase from the Company, an 
aggregate of $10 million principal amount of the Company's 3% Convertible 
Subordinated Debentures (the "Initial Debentures" and, together with the Put 
Debentures, the "Debentures") on the terms and conditions set forth therein;

       WHEREAS, the Purchase Agreement contemplates that, subject to certain 
terms and conditions, the Company shall have the right to sell to the 
Investors an aggregate of $10 million principal amount of additional 
debentures (the "Put Debentures") and the Company shall issue to the 
Investors an aggregate of 150,000 additional Warrants; and

       WHEREAS, the Purchase Agreement contemplates that the Debentures will 
be convertible into shares (the "Common Shares") of common stock, no par 
value, of the Company ("Common Stock") pursuant to the terms and conditions 
set forth in the Debentures; and

       WHEREAS, pursuant to the terms of, and in partial consideration for, 
the Investors' agreement to enter into the Purchase Agreement, the Company 
has agreed to issue the Warrants exercisable for Warrant Shares and to 
provide the Investors with certain registration rights with respect to the 
Common Shares and Warrant Shares and certain other rights and remedies with 
respect to the Debentures as set forth in this Agreement;

       NOW, THEREFORE, in consideration of the mutual promises, 
representations, warranties, covenants and conditions set forth in the 
Purchase Agreement and this Agreement, the Company and the Investors agree as 
follows:

       1.     CERTAIN DEFINITIONS.  Capitalized terms used herein and not 
otherwise defined shall have the meaning ascribed thereto in the Purchase 
Agreement, Warrants or the Debentures.  As used in this Agreement, the 
following terms shall have the following respective meanings:

       "CLOSING" and "CLOSING DATE" shall have the meanings ascribed to such
terms in the Purchase 



Agreement.

       "COMMISSION" or "SEC" shall mean the Securities and Exchange Commission
or any other federal agency at the time administering the Securities Act.

       "OUTSTANDING PRINCIPAL AMOUNT" shall have the meaning ascribed to such
term in the Debentures.  

       "REGISTRABLE SECURITIES" shall mean:  (i) the Common Shares and 
Warrants Shares issued to each Holder or its permitted transferee or designee 
upon conversion of the Debentures or exercise of the Warrants, as applicable, 
or upon any stock split, stock dividend, recapitalization or similar event 
with respect to such Common Shares or Warrant Shares; (ii) any securities 
issued or issuable to each Holder upon the conversion, exercise or exchange 
of any Debentures, Warrants, Warrant Shares, or Common Shares; and (iii) any 
other security of the Company issued as a dividend or other distribution with 
respect to, conversion or exchange of or in replacement of Registrable 
Securities. 

       The terms "REGISTER", "REGISTEREDTM" and "REGISTRATION" shall 
refer to a registration effected by preparing and filing a registration 
statement in compliance with the Securities Act and applicable rules and 
regulations thereunder, and the declaration or ordering of the effectiveness 
of such registration statement.

       "REGISTRATION EXPENSES" shall mean all expenses to be incurred by the 
Company in connection with each Holder's registration rights under this 
Agreement, including, without limitation, all registration and filing fees, 
printing expenses, fees and disbursements of counsel for the Company, blue 
sky fees and expenses, reasonable fees and disbursements of counsel to 
Holders (using a single counsel selected by a majority in interest of the 
Holders) for a "due diligence" examination of the Company and review of the 
Registration Statement and related documents, and the expense of any special 
audits incident to or required by any such registration (but excluding the 
compensation of regular employees of the Company, which shall be paid in any 
event by the Company).

       "SELLING EXPENSES" shall mean all underwriting discounts and selling
commissions applicable to the sale of Registrable Securities and all fees and
disbursements of counsel for Holders not included within "Registration
Expenses".

       "HOLDER" and "HOLDERS" shall include an Investor or the Investors,
respectively, and any transferee of the Debentures, Warrants, Warrant Shares or
Common Shares or Registrable Securities which have not been sold to the public
to whom the registration rights conferred by this Agreement have been
transferred in compliance with this Agreement.

       "REGISTRATION STATEMENT" shall have the meaning set forth in Section 2(a)
herein.

       "REGULATION D" shall mean Regulation D as promulgated pursuant to the
Securities Act, and as subsequently amended.

       "SECURITIES ACT" or "ACT" shall mean the Securities Act of 1933, as
amended.

       "WARRANTS" shall mean the warrants in form and substance of EXHIBIT 1.1B
to the Purchase Agreement between the Company and the Investors, dated as of the
date hereof.



       "WARRANT SHARES" shall mean shares of Common Stock of the Company 
issued and issuable upon exercise of the Warrant.

       2.     REGISTRATION REQUIREMENTS.  The Company shall use its best 
efforts to effect the registration of the Registrable Securities (including 
without limitation the execution of an undertaking to file post-effective 
amendments, appropriate qualification under applicable blue sky or other 
state securities laws and appropriate compliance with applicable regulations 
issued under the Securities Act) as would permit or facilitate the sale or 
distribution of all the Registrable Securities in the manner (including 
manner of sale) and in all states reasonably requested by the Holder.  Such 
best efforts by the Company shall include the following:

              (a)    The Company shall, as expeditiously as reasonably 
possible after the Closing Date:

                     (i)    But in any event within 30 days thereafter, prepare
              and file a registration statement with the Commission pursuant to
              Rule 415 under the Securities Act on Form S-3 under the Securities
              Act (or in the event that the Company is ineligible to use such
              form, such other form as the Company is eligible to use under the
              Securities Act) covering the Registrable Securities ("Registration
              Statement").  Such Registration Statement shall, in addition and
              without limitation, register (pursuant to Rule 416 under the
              Securities Act, or otherwise) such additional indeterminate number
              of Registrable Securities as shall be necessary to permit the
              conversion in full of the Debentures and the issuance of
              additional shares of Common Stock to Holders pursuant to the
              various reset provisions of the Debentures.  Thereafter, the
              Company shall use its best efforts to cause such Registration
              Statement and other filings to be declared effective as soon as
              possible, and in any event prior to 90 days following the Closing
              Date.  The Company shall provide Holders and their legal counsel
              reasonable opportunity to review any such Registration Statement
              or amendment or supplement thereto prior to filing.

                     (ii)   Prepare and file with the SEC such amendments and
              supplements to such Registration Statement and the prospectus used
              in connection with such Registration Statement as may be necessary
              to comply with the provisions of the Act with respect to the
              disposition of all securities covered by such Registration
              Statement and notify the Holders of the filing and effectiveness
              of such Registration Statement and any amendments or supplements.

                     (iii)  Furnish to each Holder such numbers of copies of a
              current prospectus conforming with the requirements of the Act,
              copies of the Registration Statement, any amendment or supplement
              thereto and any documents incorporated by reference therein and
              such other documents as such Holder may reasonably require in
              order to facilitate the disposition of Registrable Securities
              owned by such Holder. 

                     (iv)   Use its best efforts to register and qualify the
              securities covered by such Registration Statement under such other
              securities or 



              "Blue Sky" laws of such jurisdictions as shall be reasonably 
              requested by each Holder; provided that the Company shall not 
              be required in connection therewith or as a condition thereto to 
              qualify to do business or to file a general consent to service 
              of process in any such states or jurisdictions.

                     (v)    Notify each Holder immediately of the happening of
              any event as a result of which the prospectus (including any
              supplements thereto or thereof) included in such Registration
              Statement, as then in effect, includes an untrue statement of
              material fact or omits to state a material fact required to be
              stated therein or necessary to make the statements therein not
              misleading in light of the circumstances then existing, and use
              its best efforts to promptly update and/or correct such
              prospectus.

                     (vi)   Notify each Holder immediately of the issuance by
              the Commission or any state securities commission or agency of any
              stop order suspending the effectiveness of the Registration
              Statement or the initiation of any proceedings for that purpose. 
              The Company shall use its best efforts to prevent the issuance of
              any stop order and, if any stop order is issued, to obtain the
              lifting thereof at the earliest possible time.

                     (vii)  Permit a single firm of counsel, designated as
              Holders' counsel by a majority of the Registrable Securities
              included in the Registration Statement, to review the Registration
              Statement and all amendments and supplements thereto within a
              reasonable period of time prior to each filing, and shall not file
              any document in a form to which such counsel reasonably objects.

                     (viii) Use its best efforts to list the Registrable
              Securities covered by such Registration Statement with all
              securities exchange(s) and/or markets on which the Common Stock is
              then listed and prepare and file any required filings with the
              National Association of Securities Dealers, Inc. or any exchange
              or market where the Common Shares are traded.

                     (ix)   Take all steps necessary to enable Holders to avail
              themselves of the prospectus delivery mechanism set forth in Rule
              153 (or successor thereto) under the Act.

              (b)    Set forth below in this Section 2(b) are (I) events that 
may arise that the Investors consider will interfere with the full enjoyment 
of their rights under the Debentures, the Purchase Agreement and this 
Agreement (the "Interfering Events"), and (II) certain remedies applicable in 
each of these events.

                     Paragraphs (i) through (iv) of this Section 2(b) 
describe the Interfering Events, provide a remedy to the Investors if an 
Interfering Event occurs and provide that the Investors may require that the 
Company redeem outstanding Debentures at a specified price if certain 
Interfering Events are not timely cured.



                     Paragraph (v) provides, INTER ALIA, that if cash 
payments required as the remedy in the case of certain of the Interfering 
Events are not paid when due, the Company may be required by the Investors to 
redeem outstanding Debentures at a specified price.

                     Paragraph (vi) provides, INTER ALIA, that the Investors 
have the right to specific performance.

                     The preceding paragraphs in this Section 2(b) are meant 
to serve only as an introduction to this Section 2(b), are for convenience 
only, and are not to be considered in applying, construing or interpreting 
this Section 2(b).

                     (i)    DELAY IN EFFECTIVENESS OF REGISTRATION STATEMENT. 
              The Company agrees that it shall file the Registration Statement
              complying with the requirements of this Agreement promptly and in
              any event within 30 days following the date of the initial closing
              of the Purchase Agreement (the "Closing Date") and shall use its
              best efforts to cause such Registration Statement to become
              effective as soon as possible and in any event within 90 days from
              the Closing Date.  In the event that such Registration Statement
              has not been declared effective within 90 days from the Closing
              Date, then the percentage (initially 90%) employed to determine
              the "Conversion Price" pursuant to Section 5(c) of the Debentures
              and all Conversion Price resets pursuant to Sections 5(d) and 5(e)
              of the Debentures (the "Agreed Percentage") shall be reduced by 1%
              during and after the 30-day period ("Default Period") from and
              after the 90th day following the Closing Date during any part of
              which such Registration Statement is not effective, and such
              Agreed Percentage shall be further reduced by an additional 1.5%
              during and after each Default Period thereafter.  For example, if
              the Registration Statement does not become effective until 120
              days from the Closing Date, the Agreed Percentage from and after
              day 91 shall be equal to 89%.  If the Registration Statement is
              not effective until the 150th day after the Closing Date, the
              Agreed Percentage from and after day 121 from the Closing Date
              shall be 87.5%.  In each case, the Agreed Percentage and the
              Conversion Price shall be subject to further adjustment as set
              forth in the Debenture and the Purchase Agreement.  If the
              Registration Statement has not been declared effective within 120
              days after the Closing Date, then each Holder shall have the right
              in its sole discretion to sell its Debentures, Common Shares
              and/or Warrant Shares to the Company (in whole or in part) at a
              price in immediately available funds (the "Premium Redemption
              Price") equal to (A) as to the Debentures, 1.3 times (i.e., 130%
              of) the Outstanding Principal Amount of the Debentures plus any
              accrued but unpaid or unrecognized interest or default payments
              and (B) as to the Common Shares and/or Warrant Shares, 1.3 times
              the dollar amount which is the product of (x) the number of shares
              so to be redeemed pursuant to this paragraph, and (y) the fair
              market value of such shares (as defined in the Debentures) at the
              time such shares were received pursuant to conversion of
              Debentures or exercise of Warrants.  Payment of such amount shall
              be 



              due and payable within 3 business days of demand therefor,
              which demand shall be revocable by the Holder at any time prior to
              its actual receipt of the Premium Redemption Price.  

                     (ii)   NO LISTING; PREMIUM PRICE REDEMPTION FOR DELISTING
              OF CLASS OF SHARES.

                            (A)    In the event that the Company fails, refuses
              or is unable to cause the Registrable Securities covered by the
              Registration Statement to be listed with the Approved Market and
              each other securities exchange and market on which the Common
              Stock is then traded at all times during the period ("Listing
              Period") commencing the earlier of the effective date of the
              Registration Statement or the 90th day following the Closing Date,
              and continuing thereafter for so long as the Debentures are
              outstanding, then the Company shall pay in cash to each Holder a
              default payment at a rate (the "Default Payment Rate") equal to
              two percent (2%) of the sum of (x) the Outstanding Principal
              Amount of, (y) the accrued but unpaid interest on, plus (z) the
              accrued but unpaid or unrecognized default payments on the
              Debentures (the "Debenture Amount") held by such Holder for each
              30-day period (or portion thereof) during the Listing Period from
              and after such failure, refusal or inability to so list the
              Registrable Securities until the Registrable Securities are so
              listed.

                            (B)    In the event that shares of Common Stock of
              the Company are delisted from the Approved Market at any time
              following the Closing Date and remain delisted for 5 consecutive
              days, then at the option of each Holder and to the extent such
              Holder so elects, the Company shall on 2 business days notice
              redeem the Debentures and/or Common Shares and/or Warrant Shares
              held by such Holder, in whole or in part, at a redemption price
              equal to the Premium Redemption Price (as defined above);
              provided, however, that such Holder may revoke such request at any
              time prior to receipt of such payment of such redemption price. 
              Default payments shall no longer accrue on Debentures after such
              shares have been redeemed by the Company pursuant to the foregoing
              provision.

                     (iii)  BLACKOUT PERIODS.  In the event any Holder's ability
              to sell Registrable Securities under the Registration Statement is
              suspended:

                            (A) for more than (i) five (5) consecutive days or
              (ii) ten (10) days in any calendar year ("Suspension Grace
              Period"), including without limitation by reason of a suspension
              of trading of the Common Stock on the Approved Market, any
              suspension or stop order with respect to the Registration
              Statement or the fact that an event has occurred as a result of
              which the prospectus (including any supplements thereto) included
              in such Registration Statement then in effect includes an untrue
              statement of material fact or omits to state a material fact
              required to be stated therein or necessary to make the statements
              therein not misleading in light of the circumstances then
              existing; or

                            (B) for more than (i) fifteen (15) consecutive days
              or (ii) twenty (20) days in 




              any calendar year ("Corporate Event Suspension Grace Period"), 
              by reason of any corporate event, including, without limitation, 
              a merger, acquisition or disposition;

              then the Company shall pay in cash to each Holder a default
              payment at the Default Payment Rate of the Debenture Amount for
              the Debentures held by such Holder for each 30-day period (or
              portion thereof) from and after the expiration of the Suspension
              Grace Period or Corporate Event Suspension Grace Period. 
              Alternatively, a Holder shall have the right but not the
              obligation to have the Company redeem its Debentures and Common
              Shares and Warrant Shares at the price and on the terms (and
              subject to the right to revoke) set forth in Section 2(b)(i)
              above.

                     (iv)   CONVERSION DEFICIENCY; PREMIUM PRICE REDEMPTION FOR
              CONVERSION DEFICIENCY.  In the event that the Company does not
              have a sufficient number of Common Shares available to satisfy the
              Company's obligations to any Holder upon receipt of a Conversion
              Notice (as defined in the Debenture) or is otherwise unable or
              unwilling to issue such Common Shares (including without
              limitation by reason of the limit described in Section 10 below)
              in accordance with the terms of the Debenture for any reason after
              receipt of a Conversion Notice, then:

                            (A)    The Company shall pay in cash to each Holder
              a default payment at the Default Payment Rate on the Debenture
              Amount for the Debentures held by such Holder for each 30-day
              period (or portion thereof) that the Company fails or refuses to
              issue Common Shares in accordance with the Debenture terms; and

                            (B)    At any time five days after the commencement
              of the running of the first 30-day period described above in
              clause (A) of this paragraph (iv), at the request of any Holder
              pursuant to a redemption notice, the Company promptly (1) shall
              purchase from such Holder, at a purchase price equal to the
              Premium Redemption Price, the Debenture Amount of Debentures equal
              to such Holder's pro rata share of the "Deficiency", as such terms
              are defined below, if the failure to issue Common Shares results
              from the lack of a sufficient number thereof and (2) shall
              purchase all (or such portion as such Holder may elect) of such
              Holder's Debentures at such Premium Redemption Price if the
              failure to issue Common Shares results from any other cause.  The
              "Deficiency" shall be equal to the Debenture Amount of Debentures
              that would not be able to be converted for Common Shares, due to
              an insufficient number of Common Shares available, if all the
              outstanding Debentures were submitted for conversion at the
              Conversion Price set forth in the Debentures as of the date such
              Deficiency is determined.  Any request by a Holder pursuant to
              this paragraph (iv)(B) shall be revocable by that Holder at any
              time prior to its receipt of the Premium Redemption Price.

                     (v)  PREMIUM PRICE REDEMPTION FOR CASH PAYMENT DEFAULTS.



                            (A)  the Company acknowledges that any failure,
              refusal or inability by the Company described in the foregoing
              paragraphs (i) through (iv) will cause the Holders to suffer
              damages in an amount that will be difficult to ascertain,
              including without limitation damages resulting from the loss of
              liquidity in the Registrable Securities and the additional
              investment risk in holding the Registrable Securities. 
              Accordingly, the parties agree that it is appropriate to include
              in this Agreement the foregoing provisions for default payments,
              discounts and mandatory redemptions in order to compensate the
              Holders for such damages.  The parties acknowledge and agree that
              the default payments, discounts and mandatory redemptions set
              forth above represent the parties' good faith effort to quantify
              such damages and, as such, agree that the form and amount of such
              default payments, discounts and mandatory redemptions are
              reasonable and will not constitute a penalty.  

                            (B)  Each default payment provided for in the
              foregoing paragraphs (ii) through (iv) shall be in addition to
              each other default payment; provided, however, that in no event
              shall the Company be obligated to pay to any Holder default
              payments in an aggregate amount greater than the Default Payment
              Rate of the Debenture Amount of the Debentures held by such Holder
              for any 30-day period (or portion thereof).  All default payments
              (which payments shall be pro rata on a per diem basis for any
              period of less than 30 days) required to be made in connection
              with the above provisions shall be paid in cash at any time upon
              demand, and whether or not a demand is made, by the tenth (10th)
              day of each calendar month for each partial or full 30-day period
              occurring prior to that date.  Until paid as required in this
              Agreement, default payments shall be deemed added to, and a part
              of, the Outstanding Principal Amount of a Holder's Debentures.

                            (C)  In the event that the Company fails or refuses
              to pay any default payment or honor any default adjustments of the
              Agreed Percentage when due, at any Holder's request and option the
              Company shall purchase all or a portion of the Debentures, Common
              Shares and/or Warrant Shares held by such Holder (with default
              payments accruing through the date of such purchase), within five
              (5) days of such request, at a purchase price equal to the Premium
              Redemption Price (as defined above), provided that such Holder may
              revoke such request at any time prior to receipt of such payment
              of such purchase price.  Until such time as the Company purchases
              such Debentures at the request of such Holder pursuant to the
              preceding sentence, at any Holder's request and option the Company
              shall as to such Holder pay such amount by adding and including
              the amount of such default payment to the Outstanding Principal
              Amount of a Holder's Debentures.

                     (vi)   CUMULATIVE REMEDIES.  The default payments and
              mandatory redemptions provided for above are in addition to and
              not in lieu 



              or limitation of any other rights the Holders may have at law, 
              in equity or under the terms of the Debentures, the Purchase 
              Agreement, the Warrants or this Agreement, including without 
              limitation the right to specific performance.  Each Holder
              shall be entitled to specific performance of any and all
              obligations of the Company in connection with the registration
              rights of the Holders hereunder.  

              (c)    If the Holder(s) intend to distribute the Registrable 
Securities by means of an underwriting, the Holder(s) shall so advise the 
Company.  Any such underwriting may only be administered by investment 
bankers reasonably satisfactory to the Company.  The Company shall only be 
obligated to permit one underwritten offering, which offering shall be 
determined by a majority-in-interest of the Holders.  

              (d)    The Company shall enter into such customary agreements 
for secondary offerings (including a customary underwriting agreement with 
the underwriter or underwriters, if any) and take all such other reasonable 
actions reasonably requested by the Holders in connection therewith in order 
to expedite or facilitate the disposition of such Registrable Securities.  
When Registrable Securities are to be sold in an underwritten offering the 
Company shall:

                     (i)    make such representations and warranties to the
              Holders and the underwriter or underwriters, if any, in form,
              substance and scope as are customarily made by issuers to
              underwriters and holders in secondary offerings;

                     (ii)   cause to be delivered to the sellers of Registrable
              Securities and the underwriter or underwriters, if any, opinions
              of independent counsel to the Company, on and dated as of the
              Effectiveness Date, which counsel and opinions (in form, scope and
              substance) shall be reasonably satisfactory to the Holders and the
              underwriter(s), if any, and their counsel and covering, without
              limitation, such matters as are customarily given to underwriters
              and holders in underwritten offerings, addressed to the Holders
              and each underwriter, if any; 

                     (iii)  cause to be delivered, immediately prior to the
              effectiveness of the Registration Statement (and at the time of
              delivery of any Registrable Securities sold pursuant thereto), a
              "comfort" letter from the Company's independent certified public
              accountants addressed to the Holders and each underwriter, if any,
              stating that such accountants are independent public accountants
              within the meaning of the Securities Act and the applicable
              published rules and regulations thereunder, and otherwise in
              customary form and covering such financial and accounting matters
              as are customarily covered by letters of the independent certified
              public accountants delivered in connection with registered
              offerings;

                     (iv)   the underwriting agreement shall include customary
              indemnification and contribution provisions to and from the
              underwriters and procedures for secondary underwritten offerings;
              and



                     (v)    deliver such documents and certificates as may be
              reasonably requested by the Holders of the Registrable Securities
              being sold or the managing underwriter or underwriters, if any, to
              evidence compliance with clause (i) above and with any customary
              conditions contained in the underwriting agreement, if any.

              (e)    The Company shall make available for inspection by the 
Holders, representative(s) of all the Holders together, any underwriter 
participating in any disposition pursuant to a Registration Statement, and 
any attorney or accountant retained by any Holder or underwriter, all 
financial and other records customary for purposes of the Holders' due 
diligence examination of the Company and review of any Registration 
Statement, all SEC Documents (as defined in the Purchase Agreement) filed 
subsequent to the Closing, pertinent corporate documents and properties of 
the Company, and cause the Company's officers, directors and employees to 
supply all information reasonably requested by any such representative, 
underwriter, attorney or accountant in connection with such Registration 
Statement, provided that such parties agree to keep such information 
confidential.

              (f)    Subject to Section 2(b) above, the Company may suspend 
the use of any prospectus used in connection with the Registration Statement 
only in the event, and for such period of time as, such a suspension is 
required by the rules and regulations of the Commission.  The Company will 
use its best efforts to cause such suspension to terminate at the earliest 
possible date. 

              (g)    The Company shall file a Registration Statement with 
respect to any newly authorized and/or reserved shares within five (5) 
business days of any shareholders meeting authorizing same and shall use its 
best efforts to cause such Registration Statement to become effective within 
sixty (60) days of such shareholders meeting.  If the Holders become 
entitled, pursuant to an event described in clause (iii) of the definition of 
Registrable Securities, to receive any securities in respect of Registrable 
Securities that were already included in a Registration Statement, subsequent 
to the date such Registration Statement is declared effective, and the 
Company is unable under the securities laws to add such securities to the 
then effective Registration Statement, the Company shall promptly file, in 
accordance with the procedures set forth herein, an additional Registration 
Statement with respect to such newly Registrable Securities.  The Company 
shall use its best efforts to (i) cause any such additional Registration 
Statement, when filed, to become effective under the Securities Act, and (ii) 
keep such additional Registration Statement effective during the period 
described in Section 5 below.  All of the registration rights and remedies 
under this Agreement shall apply to the registration of such newly reserved 
shares and such new Registrable Securities, including without limitation the 
provisions providing for default payments contained herein. 

       3.     EXPENSES OF REGISTRATION.  All Registration Expenses incurred in
connection with any registration, qualification or compliance with registration
pursuant to this Agreement shall be borne by the Company, and all Selling
Expenses of a Holder shall be borne by such Holder.

       4.     REGISTRATION ON FORM S-3.  The Company shall use its best efforts
to qualify for registration on Form S-3 or any comparable or successor form or
forms, or in the event that the Company is ineligible to use such form, such
form as the Company is eligible to use under the Securities Act.

       5.     REGISTRATION PERIOD.  In the case of the registration effected by
the Company pursuant to this Agreement, the Company will use its best efforts to
keep such registration effective until the later of (a) the first anniversary of
the issue of the Debenture and Warrant and (b) the date upon which all shares of
Common 



Stock issuable upon conversion of the Debentures have been sold freely 
without restriction.

       6.     INDEMNIFICATION.

              (a)    THE COMPANY INDEMNITY.  The Company will indemnify each 
Holder, each of its officers, directors and partners, and each person 
controlling each Holder, within the meaning of Section 15 of the Securities 
Act and the rules and regulations thereunder with respect to which 
registration, qualification or compliance has been effected pursuant to this 
Agreement, and each underwriter, if any, and each person who controls, within 
the meaning of Section 15 of the Securities Act and the rules and regulations 
thereunder, any underwriter, against all claims, losses, damages and 
liabilities (or actions in respect thereof) arising out of or based on any 
untrue statement (or alleged untrue statement) of a material fact contained 
in any prospectus, offering circular or other document (including any related 
registration statement, notification or the like) incident to any such 
registration, qualification or compliance, or based on any omission (or 
alleged omission) to state therein a material fact required to be stated 
therein or necessary to make the statements therein not misleading, or any 
violation by the Company of the Securities Act or any state securities law or 
in either case, any rule or regulation thereunder applicable to the Company 
and relating to action or inaction required of the Company in connection with 
any such registration, qualification or compliance, and will reimburse each 
Holder, each of its officers, directors and partners, and each person 
controlling such Holder, each such underwriter and each person who controls 
any such underwriter, for any legal and any other expenses reasonably 
incurred in connection with investigating and defending any such claim, loss, 
damage, liability or action, provided that the Company will not be liable in 
any such case to a Holder to the extent that any such claim, loss, damage, 
liability or expense arises out of or is based on any untrue statement or 
omission based upon written information furnished to the Company by such 
Holder or the underwriter (if any) therefor and stated to be specifically for 
use therein.  The indemnity agreement contained in this Section 6(a) shall 
not apply to amounts paid in settlement of any such loss, claim, damage, 
liability or action if such settlement is effected without the consent of the 
Company (which consent will not be unreasonably withheld).

              (b)    HOLDER INDEMNITY.  Each Holder will, severally and not 
jointly, if Registrable Securities held by it are included in the securities 
as to which such registration, qualification or compliance is being effected, 
indemnify the Company, each of its directors, officers, partners, and each 
underwriter, if any, of the Company's securities covered by such a 
registration statement, each person who controls the Company or such 
underwriter within the meaning of Section 15 of the Securities Act and the 
rules and regulations thereunder, each other Holder (if any), and each of 
their officers, directors and partners, and each person controlling such 
other Holder(s) against all claims, losses, damages and liabilities (or 
actions in respect thereof) arising out of or based on any untrue statement 
(or alleged untrue statement) of a material fact contained in any such 
registration statement, prospectus, offering circular or other document, or 
any omission (or alleged omission) to state therein a material fact required 
to be stated therein or necessary to make the statement therein not 
misleading, and will reimburse the Company and such other Holder(s) and their 
directors, officers and partners, underwriters or control persons for any 
legal or any other expenses reasonably incurred in connection with 
investigating and defending any such claim, loss, damage, liability or 
action, in each case to the extent, but only to the extent, that such untrue 
statement (or alleged untrue statement) or omission (or alleged omission) is 
made in such registration statement, prospectus, offering circular or other 
document in reliance upon and in conformity with written information 
furnished to the Company by such Holder and stated to be specifically for use 
therein, and provided that the maximum amount for which such Holder shall be 
liable under this indemnity shall not exceed the net proceeds received by 
such Holder from the sale of the Registrable Securities.  The indemnity 
agreement contained in this Section 6(b) shall not apply to amounts paid in 
settlement of any such claims, losses, damages or liabilities if such 
settlement is effected without the consent of 




such Holder (which consent shall not be unreasonably withheld).

              (c)    PROCEDURE.  Each party entitled to indemnification under 
this Article (the "Indemnified Party") shall give notice to the party 
required to provide indemnification (the "Indemnifying Party") promptly after 
such Indemnified Party has actual knowledge of any claim as to which 
indemnity may be sought, and shall permit the Indemnifying Party to assume 
the defense of any such claim in any litigation resulting therefrom, provided 
that counsel for the Indemnifying Party, who shall conduct the defense of 
such claim or any litigation resulting therefrom, shall be approved by the 
Indemnified Party (whose approval shall not be unreasonably withheld), and 
the Indemnified Party may participate in such defense at such party's 
expense, and provided further that the failure of any Indemnified Party to 
give notice as provided herein shall not relieve the Indemnifying Party of 
its obligations under this Article except to the extent that the Indemnifying 
Party is materially and adversely affected by such failure to provide notice. 
 No Indemnifying Party, in the defense of any such claim or litigation, 
shall, except with the consent of each Indemnified Party, consent to entry of 
any judgment or enter into any settlement which does not include as an 
unconditional term thereof the giving by the claimant or plaintiff to such 
Indemnified Party of a release from all liability in respect to such claim or 
litigation.  Each Indemnified Party shall furnish such information regarding 
itself or the claim in question as an Indemnifying Party may reasonably 
request in writing and as shall be reasonably required in connection with the 
defense of such claim and litigation resulting therefrom.

       7.     CONTRIBUTION.  If the indemnification provided for in Section 6 
herein is unavailable to the Indemnified Parties in respect of any losses, 
claims, damages or liabilities referred to herein (other than by reason of 
the exceptions provided therein), then each such Indemnifying Party, in lieu 
of indemnifying such Indemnified Party, shall contribute to the amount paid 
or payable by such Indemnified Party as a result of such losses, claims, 
damages or liabilities as between the Company on the one hand and any Holder 
on the other, in such proportion as is appropriate to reflect the relative 
fault of the Company and of such Holder in connection with the statements or 
omissions which resulted in such losses, claims, damages or liabilities, as 
well as any other relevant equitable considerations.  The relative fault of 
the Company on the one hand and of any Holder on the other shall be 
determined by reference to, among other things, whether the untrue or alleged 
untrue statement of a material fact or omission or alleged omission to state 
a material fact relates to information supplied by the Company or by such 
Holder.

              In no event shall the obligation of any Indemnifying Party to 
contribute under this Section 7 exceed the amount that such Indemnifying 
Party would have been obligated to pay by way of indemnification if the 
indemnification provided for under Section 6(a) or 6(b) hereof had been 
available under the circumstances.

              The Company and the Holders agree that it would not be just and 
equitable if contribution pursuant to this Section 7 were determined by pro 
rata allocation (even if the Holders or the underwriters were treated as one 
entity for such purpose) or by any other method of allocation which does not 
take account of the equitable considerations referred to in the immediately 
preceding paragraphs.  The amount paid or payable by an Indemnified Party as 
a result of the losses, claims, damages and liabilities referred to in the 
immediately preceding paragraphs shall be deemed to include, subject to the 
limitations set forth above, any legal or other expenses reasonably incurred 
by such Indemnified Party in connection with investigating or defending any 
such action or claim. Notwithstanding the provisions of this section, no 
Holder or underwriter shall be required to contribute any amount in excess of 
the amount by which (i) in the case of any Holder, the net proceeds received 
by such Holder from the sale of Registrable Securities or (ii) in the case of 
an underwriter, the total price at which the Registrable Securities purchased 
by it and distributed to the public were offered to the public exceeds, in 
any such case, the amount of any damages that such Holder or underwriter has 
otherwise been 




required to pay by reason of such untrue or alleged untrue statement or 
omission or alleged omission.  No person guilty of fraudulent 
misrepresentation (within the meaning of Section 11(f) of the Securities Act) 
shall be entitled to contribution from any person who was not guilty of such 
fraudulent misrepresentation.

       8.     SURVIVAl.  The indemnity and contribution agreements contained 
in Sections 6 and 7 and the representations and warranties of the Company 
referred to in Section 2(d)(i) shall remain operative and in full force and 
effect regardless of (i) any termination of this Agreement or the Purchase 
Agreement or any underwriting agreement, (ii) any investigation made by or on 
behalf of any Indemnified Party or by or on behalf of the Company, and (iii) 
the consummation of the sale or successive resales of the Registrable 
Securities.

       9.     INFORMATION BY HOLDERS.  Each Holder shall furnish to the 
Company such information regarding such Holder and the distribution and/or 
sale proposed by such Holder as the Company may reasonably request in writing 
and as shall be reasonably required in connection with any registration, 
qualification or compliance referred to in this Agreement.  The intended 
method or methods of disposition and/or sale (Plan of Distribution) of such 
securities as so provided by such Investor shall be included without 
alteration in the Registration Statement covering the Registrable Securities 
and shall not be changed without written consent of such Holder.

       10.    NASDAQ LIMIT ON STOCK ISSUANCES.  Section 7(g) of the Debenture 
shall govern limits imposed by NASDAQ rules on the conversion of Debentures 
or the exercise of Warrants.

       11.    REPLACEMENT CERTIFICATES.  The certificate(s) representing the 
Common Shares or Warrant Shares held by any Investor (or then Holder) may be 
exchanged by such Investor (or such Holder) at any time and from time to time 
for certificates with different denominations representing an equal aggregate 
number of Common Shares or Warrant Shares, as reasonably requested by such 
Investor (or such Holder) upon surrendering the same.  No service charge will 
be made for such registration or transfer or exchange.

       12.    TRANSFER OR ASSIGNMENT.  Except as otherwise provided herein, 
this Agreement shall be binding upon and inure to the benefit of the parties 
and their successors and permitted assigns.  The rights granted to the 
Investors by the Company under this Agreement to cause the Company to 
register Registrable Securities may be transferred or assigned (in whole or 
in part) to a transferee or assignee of Debentures or Warrants, and all other 
rights granted to the Investors by the Company hereunder may be transferred 
or assigned to any transferee or assignee of any Debentures or Warrants; 
provided in each case that the Company must be given written notice by the 
such Investor at the time of or within a reasonable time after said transfer 
or assignment, stating the name and address of said transferee or assignee 
and identifying the securities with respect to which such registration rights 
are being transferred or assigned; and provided further that the transferee 
or assignee of such rights agrees in writing to be bound by the registration 
provisions of this Agreement.



       13.    MISCELLANEOUS.

              (a)    REMEDIES.  The Company and the Investors acknowledge and 
agree that irreparable damage would occur in the event that any of the 
provisions of this Agreement were not performed in accordance with their 
specific terms or were otherwise breached.  It is accordingly agreed that the 
parties shall be entitled to an injunction or injunctions to prevent or cure 
breaches of the provisions of this Agreement and to enforce specifically the 
terms and provisions hereof, this being in addition to any other remedy to 
which any of them may be entitled by law or equity.

              (b)    JURISDICTION.  THE COMPANY AND EACH OF THE INVESTORS (I) 
HEREBY IRREVOCABLY SUBMITS TO THE EXCLUSIVE JURISDICTION OF THE UNITED STATES 
DISTRICT COURT, THE NEW YORK STATE COURTS AND OTHER COURTS OF THE UNITED 
STATES SITTING IN NEW YORK COUNTY, NEW YORK FOR THE PURPOSES OF ANY SUIT, 
ACTION OR PROCEEDING ARISING OUT OF OR RELATING TO THIS AGREEMENT AND (II) 
HEREBY WAIVES, AND AGREES NOT TO ASSERT IN ANY SUCH SUIT ACTION OR 
PROCEEDING, ANY CLAIM THAT IT IS NOT PERSONALLY SUBJECT TO THE JURISDICTION 
OF SUCH COURT, THAT THE SUIT, ACTION OR PROCEEDING IS BROUGHT IN AN 
INCONVENIENT FORUM OR THAT THE VENUE OF THE SUIT, ACTION OR PROCEEDING IS 
IMPROPER.  THE COMPANY AND EACH OF THE INVESTORS CONSENTS TO PROCESS BEING 
SERVED IN ANY SUCH SUIT, ACTION OR PROCEEDING BY MAILING A COPY THEREOF TO 
SUCH PARTY AT THE ADDRESS IN EFFECT FOR NOTICES TO IT UNDER THIS AGREEMENT 
AND AGREES THAT SUCH SERVICE SHALL CONSTITUTE GOOD AND SUFFICIENT SERVICE OF 
PROCESS AND NOTICE THEREOF.  NOTHING IN THIS PARAGRAPH SHALL AFFECT OR LIMIT 
ANY RIGHT TO SERVE PROCESS IN ANY OTHER MANNER PERMITTED BY LAW.

              (c)    NOTICES.  Any notice or other communication required or 
permitted to be given hereunder shall be in writing by facsimile, mail or 
personal delivery and shall be effective upon actual receipt of such notice. 
The addresses for such communications shall be:

              to the Company:

                  Zitel Corporation
                  47211 Bayside Parkway
                  Fremont, California  94538
                  Attention:    Chief Financial Officer
                  Facsimile:    (510) 440-8526


              to the Investors:

                  To each Investor at the address and/or fax number set forth 
                  on Schedule I of this Agreement.

              with copies to:

                  Kleinberg, Kaplan, Wolff & Cohen, P.C.
                  551 Fifth Avenue
                  New York, New York 10176
                  Facsimile:    (212) 986-8866



                  Attention:    Stephen M. Schultz, Esq.

Any party hereto may from time to time change its address for notices by 
giving at least 10 days' written notice of such changed address to the other 
parties hereto.

              (d)    INDEMNITY.  Each party shall indemnify each other party 
against any loss, cost or damages (including reasonable attorney's fees) 
incurred as a result of such parties' breach of any representation, warranty, 
covenant or agreement in this Agreement.

              (e)    WAIVERS.  No waiver by any party of any default with 
respect to any provision, condition or requirement of this Agreement shall be 
deemed to be a continuing waiver in the future or a waiver of any other 
provision, condition or requirement hereof, nor shall any delay or omission 
of any party to exercise any right hereunder in any manner impair the 
exercise of any such right accruing to it thereafter.  The representations 
and warranties and the agreements and covenants of the Company and each 
Investor contained herein shall survive the Closing.               

              (f)    EXECUTION.  This Agreement may be executed in two or 
more counterparts, all of which shall be considered one and the same 
agreement, it being understood that all parties need not sign the same 
counterpart.

              (g)    PUBLICITY.  The Company agrees that it will not 
disclose, and will not include in any public announcement, the name of any 
Investor without its consent, unless and until such disclosure is required by 
law or applicable regulation, and then only to the extent of such 
requirement.  The Company agrees that a copy of any public announcement 
(other than the filing of the Purchase Agreement as an Exhibit on Form 8-K) 
regarding the matters covered by this Agreement or any agreement or document 
executed herewith and any public announcement including the name of an 
Investor will be approved by each Investor, prior to the publication of such 
announcements.  Notwithstanding the foregoing, on the Closing Date the 
Company may issue a public announcement stating only that (a) the Company has 
completed a $10,000,000 financing of convertible debentures with an 
institutional investor, and that (b) the convertible debentures are subject 
to a conversion price fixed pursuant to a formula which includes a 10% 
discount.

              (h)    ENTIRE AGREEMENT.  This Agreement, together with the 
Purchase Agreement, the Debentures and the Warrants and the agreements and 
documents contemplated hereby and thereby, contains the entire understanding 
and agreement of the parties, and may not be modified or terminated except by 
a written agreement signed by both parties.

              (i)    GOVERNING LAW; CONSENT OF JURISDICTION.  THIS AGREEMENT 
AND THE VALIDITY AND PERFORMANCE OF THE TERMS HEREOF SHALL BE GOVERNED BY AND 
CONSTRUED AND ENFORCED IN ACCORDANCE WITH THE INTERNAL LAWS OF THE STATE OF 
NEW YORK APPLICABLE TO CONTRACTS EXECUTED AND TO BE PERFORMED ENTIRELY IN 
SUCH STATE.

              (j)    SEVERABILITY.  The parties acknowledge and agree that 
the Investors are not agents, affiliates or partners of each other, that all 
representations, warranties, covenants and agreements of the Investors 
hereunder are several and not joint, that no Investor shall have any 
responsibility or liability for the representations, warrants, agreements, 
acts or omissions of any other Investor, and that any rights granted to 
"Investors" hereunder shall be enforceable by each Investor hereunder.




              (k)    JURY TRIAL.  EACH PARTY HERETO WAIVES THE RIGHT TO A TRIAL
BY JURY.

              (l)    TITLES.  The titles used in this Agreement are used for 
convenience only and are not to be considered in construing or interpreting 
this Agreement.

                           [ SIGNATURE PAGES FOLLOW ]



       IN WITNESS WHEREOF, the parties hereto have caused this Agreement to 
be duly executed as of the date first above written.

                                ZITEL CORPORATION:



                                By:
                                    --------------------------
                                    Name:         
                                    Title:        



                                INVESTORS:


                                HALIFAX FUND, L.P.


                                By:    THE PALLADIN GROUP, L.P.
                                       Attorney-in-Fact



                                By: 
                                    ---------------------------------
                                    Name:  Robert Chender
                                    Title: Managing Director



                                PALLADIN PARTNERS I, L.P.


                                By:    PALLADIN ASSET MANAGEMENT, L.L.C.
                                       General Partner



                                By: 
                                    ---------------------------------
                                    Name:         
                                    Title:        




                                PALLADIN OVERSEAS FUND LIMITED


                                By:    THE PALLADIN GROUP, L.P.
                                       Attorney-in-Fact



                                By: 
                                    ----------------------------------
                                    Name:  Robert Chender
                                    Title: Managing Director



                                THE GLENEAGLES FUND COMPANY


                                By:    THE PALLADIN GROUP, L.P.
                                       Attorney-in-Fact



                                By: 
                                    ---------------------------------
                                    Name:  Robert Chender
                                    Title: Managing Director



                                PALLADIN SECURITIES, LLC



                                By: 
                                    ---------------------------------
                                    Name:   Robert Chender
                                    Title:  Principal


                                COLONIAL PENN LIFE INSURANCE COMPANY

                                By:    THE PALLADIN GROUP, L.P.
                                       Attorney-in-Fact


                                By: 
                                    ---------------------------------
                                    Name:  Robert Chender
                                    Title: Managing Director




       [SIGNATURE PAGE TO ZITEL CORPORATION REGISTRATION RIGHTS AGREEMENT]




                            SCHEDULE I


NAME OF PURCHASER                       NAME OF PURCHASER
- -------------------                     -----------------

HALIFAX FUND, L.P.                      PALLADIN PARTNERS I, L.P.            
c/o The Palladin Group, L.P.            c/o Palladin Asset Management, LLC   
Investment Manager                      40 West 57th Street                  
40 West 57th Street                     New York, New York  10019            
New York, New York  10019               Attn:  Kevin Gerlitz                 
Attn:  Kevin Gerlitz                                                         
                                        Tel:  (212) 698-0500                 
Tel:  (212) 698-0500                    Fax:  (212) 698-0599                 
Fax:  (212) 698-0599


PALLADIN OVERSEAS FUND LIMITED          THE GLENEAGLES FUND COMPANY     
c/o The Palladin Group, L.P.            c/o The Palladin Group, L.P.    
Investment Manager                      Investment Manager              
40 West 57th Street                     40 West 57th Street             
New York, New York  10019               New York, New York  10019       
Attn:  Kevin Gerlitz                    Attn:  Kevin Gerlitz            
                                                                        
Tel:  (212) 698-0500                    Tel:  (212) 698-0500            
Fax:  (212) 698-0599                    Fax:  (212) 698-0599            


PALLADIN SECURITIES, LLC                COLONIAL PENN LIFE INSURANCE COMPANY 
40 West 57th Street                     c/o The Palladin Group, L.P.         
New York, New York  10019               Investment Manager                   
Attn:  Kevin Gerlitz                    40 West 57th Street                  
                                        New York, New York  10019            
Tel:  (212) 698-0500                    Attn:  Kevin Gerlitz                 
Fax:  (212) 698-0599                                                         
                                        Tel:  (212) 698-0500                 
                                        Fax:  (212) 698-0599