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HP Services Software Patches - vaxdriv12_u2055
    NOTE:  An OpenVMS saveset or PCSI installation file is stored
           on the Internet in a self-expanding compressed file.
           The name of the compressed file will be kit_name-dcx_vaxexe
           for OpenVMS VAX or kit_name-dcx_axpexe for OpenVMS Alpha.

           Once the file is copied to your system, it can be expanded
           by typing RUN compressed_file.  The resultant file will
           be the OpenVMS saveset or PCSI installation file which
           can be used to install the ECO.

    Copyright (c) Digital Equipment Corporation 1997.  All rights reserved.

    OP/SYS:     OpenVMS VAX

    COMPONENT:  DUDRIVER
                TUDRIVER

    SOURCE:     Digital Equipment Corporation

    ECO INFORMATION:

         ECO Kit Name:  VAXDRIV12_U2055
         ECO Kits Superseded by This ECO Kit:  VAXDRIV11_U2055
                                               VAXDRIV04_070 (Supersedes the
                                                 OpenVMS VAX V5.5-2x section
                                                 of this kit *ONLY*)
                                               VAXDRIV02_070
         ECO Kit Approximate Size:  162 Blocks
         Kit Applies To:  OpenVMS VAX V5.5-2, V5.5-2H4, and V5.5-2HF
         System/Cluster Reboot Necessary:  Yes

         Installation Rating:  3 - To be installed on all systems running
                                   the listed versions of OpenVMS which
                                   are experiencing the problems described.

         NOTE:  In order to receive the full fixes listed in this kit,
                the following remedial kits also need to be installed:

                     VAXSHAD09_U2055 on OpenVMS VAX V5.5-2 systems

    NOTE: The DUDRIVER.EXE image contained in this kit for OpenVMS
          V5.5-2 is more current than the DUDRIVER.EXE images contained
          in the VAXSHAD09_U2055 ECO kit.

    ECO KIT SUMMARY:

    An ECO kit exists for DUDRIVER/TUDRIVER on OpenVMS VAX V5.5-2, V5.5-2H4,
    and V5.5-2HF.  This kit addresses the following problems:

    Problems addressed in the VAXDRIV12_U2055 Kit:

      o  DUDRIVER does not FLUSH the pending queue of SHADOWING, HBR and
         served  IOs when connection failure routines are entered.  This
         causes a system/cluster hang.

    Problems addressed in the VAXDRIV11_U2055 Kit:

      o  These OpenVMS VAX V5.5-2 problem corrections were included in
         the multi-version VAXDRIV04_070 remedial kit.  They are now
         being issued as a V5.5-2 only remedial kit.

         There are no new problem corrections in this remedial kit.

    Problems addressed in the VAXDRIV04_070 Kit:

      o  A PGFIPLHI system crash may occur when the controller is rebooted.

      o  A problem exists with HSJ/HSD30, 40 and 50 controllers where,
         after an event that initiates Mount Verification, a packet
         acknowledgment will fail to complete.  The controller will
         report that it is making progress on the command, but will
         never finish.  This causes all IO to the affected devices to
         hang.

    Problems addressed in the VAXDRIV02_070 Kit:

      o  A node may hang due to no quorum after losing its connection
         to the quorum disk.

      o  DUDRIVER does not log IRP information.

    INSTALLATION NOTES:

    In order for the corrections in this kit to take effect, the system
    must be rebooted.  If the system is a member of a VMScluster, the
    entire cluster should be rebooted.
Files on this server are as follows:
    »vaxdriv12_u2055.README
    »vaxdriv12_u2055.CHKSUM
    »vaxdriv12_u2055.CVRLET_TXT
    »vaxdriv12_u2055.a-dcx_vaxexe

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