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* *
* This is an update to an existing patch... *
* *
* Online links can be found at *
* http://ftp.support.compaq.com/patches/public/vms/axp/v7.2-1/dec-axpvms-vms721_mount96-v0300--4.README
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TITLE: OpenVMS VMS721_MOUNT96-V0300 Alpha V7.2-1 MOUNT96 ECO Summary

New Kit Date: 31-OCT-2001
Modification Date: Not Applicable
Modification Type: New Kit
 
NOTE: An OpenVMS saveset or PCSI installation file is stored
       on the Internet in a self-expanding compressed file.
 
       For OpenVMS savesets, the name of the compressed saveset
       file will be kit_name.a-dcx_vaxexe for OpenVMS VAX or
       kit_name.a-dcx_axpexe for OpenVMS Alpha. Once the OpenVMS
       saveset is copied to your system, expand the compressed
       saveset by typing RUN kitname.dcx_vaxexe or kitname.dcx_alpexe.
 
       For PCSI files, once the PCSI file is copied to your system,
       rename the PCSI file to kitname-dcx_axpexe.pcsi, then it can
       be expanded by typing RUN kitname-dcx_axpexe.pcsi. The resultant
       file will be the PCSI installation file which can be used to install
       the ECO.
 

 
Copyright (c) Compaq Computer Corporation 2001. All rights reserved.

OP/SYS: OpenVMS Alpha

COMPONENT: MOUNT96

SOURCE: Compaq Computer Corporation

ECO INFORMATION:

     ECO Kit Name: VMS721_MOUNT96-V0300
                    DEC-AXPVMS-VMS721_MOUNT96-V0300--4.PCSI
     ECO Kits Superseded by This ECO Kit: None
     ECO Kit Approximate Size: 1050 Blocks
     Kit Applies To: OpenVMS Alpha V7.2-1
     System/Cluster Reboot Necessary: No
     Rolling Re-boot Supported: INFORMATION NOT AVAILABLE
     Installation Rating: INSTALL_1
                            1 - To be installed on all systems running
                                the listed version(s) of OpenVMS.

     Kit Dependencies:

       The following remedial kit(s), or later, must be installed BEFORE
       installation of this kit:

         VMS721_UPDATE-V0300
         VMS721_PCSI-V0100

       In order to receive all the corrections listed in this
       kit, the following remedial kits, or later, should also be installed:

         VMS721_SYS-V1100
         VMS721_CLIUTL-V0200
         VMS721_FIBRE_SCSI-V0500

ECO KIT SUMMARY:

An ECO kit exists for MOUNT on OpenVMS Alpha V7.2-1. This kit addresses
the following problems:

PROBLEMS ADDRESSED IN VMS721_MOUNT96-V0300 KIT:

  o Some reads to disk devices will occasionally fail as a result
     of a path failover. If this happens during a read of the home
     block, then MOUNT will read the alternate home block and
     continue to MOUNT the device. Depending on which read failed,
     the MOUNT may mount the disk writelocked or display other
     warning messages.

        Images Affected: [SYSLIB]MOUNTSHR.EXE
                         [SYSEXE]VMOUNT.EXE

  o Roxio CD Creator V5.0 for PCs creates a disk that is not
     compliant to the ISO standard. Attempting to MOUNT these
     disks on an OpenVMS system will crash the system with an
     SSRVEXCEPT, Unexpected system service exception bugcheck.

          Crash Dump Summary
          ------------------
          Bugcheck Type: SSRVEXCEPT,
                           Unexpected system service exception
          Current Process: DKA400CACP
          Current Image: $82$DKA0:[SYS0.SYSCOMMON.]
                           [SYSEXE]F11CACP.EXE
          Failing PC: FFFFFFFF.800ACD10 EXE$QIO_C+00170
          Failing PS: 30000000.00000001
          Module: IO_ROUTINES (Link Date/Time:
                                            29-MAR-2000 00:52:23.33)
          Offset: 0001AD10

        Images Affected: [SYSLIB]MOUNTSHR.EXE
                         [SYSEXE]VMOUNT.EXE

  o On volumes where the INDEXF.SYS file size exceeds the MAXFILES
     value for the volume, a volume rebuild operation will ACCVIO.
     VERIFY shows no problems but the commands to rebuild the
     volume will consistently fail.

     Note: To receive this complete change you must also install
           the VMS721_CLIUTL-V0200 ECO kit.

        Images Affected: [SYSLIB]MOUNTSHR.EXE

  o A SET VOLUME/REBUILD command on a volume set, where a node
     that had it mounted did not update the volume write count on
     dismount (or a crash), does not reset the volume write count
     to the correct number of writers in the cluster. A SHOW
     DEVICE/REBUILD command always shows this volume as needing a
     rebuild. Even a SET VOLUME/REBUILD=FORCE will not clear this
     rebuild status.

     Note: To receive this complete change you must also install
           the VMS721_CLIUTL-V0200 ECO kit.

        Images Affected: [SYSLIB]MOUNTSHR.EXE
                         [SYSEXE]SET.EXE

      o A MOUNT/NOWRITE command on a disk on one cluster will now
         work correctly even if the disk is mounted with a /WRITE
         qualifier on another cluster in the SAN (Storage Area
         Network). Previously, depending on the order in which the
         mounts were executed, the mount would fail with the error
         message:

         DIFVOLMNT - different volume already mounted on this
                     device.

      o If a disk is mounted with a /WRITE qualifier on one
         cluster and a /NOWRITE qualifier on another cluster in the
         SAN, MountVerification will fail with a WrongVolume status
         error on the system which had the disk mounted /NOWRITE.
         This change allows MountVerification to complete
         successfully in this configuration.

         Note: To receive this complete correction you must also install
               the VMS721_SYS-V1100 and VMS721_FIBRE_SCSI-V0500 ECO
               kits.

        Images Affected: [SYSLIB]MOUNTSHR.EXE
                         [SYSEXE]VMOUNT.EXE

  o Read failures during MOUNT that were due to an inability to
     read the home block and failures that were due to transient
     errors, such as from a path switch or SCSI bus reset, were
     following the same failure path. That is, reading the
     alternate home block and if successful mounting the disk as
     read only. Failures due to transient errors should not read
     the alternate home block and should mount the disk as
     READ/WRITE.

     For transient error failures, this change will now cause the
     READ to be re-tried for for 30 seconds (30 re-tries at one per
     second). If the READ succeeds, the disk will be mounted as
     READ/WRITE.

        Images Affected: [SYSEXE]VMOUNT.EXE
                         [SYSLIB]MOUNTSHR.EXE

INSTALLATION NOTES:

No reboot is necessary after successful installation of this kit.

If you have other nodes in your VMScluster, they should be rebooted
or install this kit in each system in order to make use of the new
image(s).

INSTALLATION INSTRUCTIONS:

Install this kit with the POLYCENTER Software installation utility
by logging into the SYSTEM account, and typing the following at the
DCL prompt:

PRODUCT INSTALL VMS721_MOUNT96 /SOURCE=[location of Kit]

The kit location may be a tape drive, CD, or a disk directory that
contains the kit.

Additional help on installing PCSI kits can be found by typing
HELP PRODUCT INSTALL at the system prompt

SPECIAL INSTALLATION INSTRUCTIONS:

  o Image Installation

     If you have other nodes in your VMScluster, an INSTALL/REPLACE
     command will need to be issued on each node in order to make
     use of the images in this kit. The commands needed are:

     INSTALL/RELACE [SYSLIB]MOUNTSHR.EXE/SHARE/OPEN/HEADER/PROT

     INSTALL REPLACE [SYSEXE]VMOUNT.EXE

  o Scripting of Answers to Installation Questions

     During installation, this kit will ask and require user
     response to several questions. If you wish to automate the
     installation of this kit and avoid having to provide responses
     to these questions, you must create a DCL command procedure
     that includes the following definitions and commands:

       1. Define logical NO_ASK$REBOOT as TRUE

       2. Add the following qualifiers to the PRODUCT INSTALL
           command and add that command to the DCL procedure.

             /PROD=DEC/BASE=AXPVMS/VER=V3.0

       3. De-assign the logicals assigned

     For example, a sample command file to install the
     VMS721_MOUNT96-V0300 kit would be:

          $ DEFINE/SYS NO_ASK$BACKUP TRUE
          $!
          $ PROD INSTALL VMS721_MOUNT96/PROD=DEC/BASE=AXPVMS/VER=V3.0
          $!
          $ DEASSIGN/SYS NO_ASK$BACKUP
          $ exit

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