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PH57657: EXPLOIT IBM UPDATES TO CMS FOR 256K TAPE BLOCK SIZE:BUG FIX

A fix is available

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APAR status

  • Closed as new function.

Error description

  • Enhance -  With APAR VM66724, IBM has enhanced CMS to support
    Large Tape Block Size (256k).
    .
               IBM Backup and Restore Manager has been enhanced to
               exploit large tape block size (256k), from the
               current 64k, for both Backup and Restore tasks
               involving TAPE I/O Handler.
    .
               Large tape block size is disabled by default.
    .
               Customers may choose to exploit this feature by
               configuring large tape block size in BKRSYSTM
               CONFIG and/or <job> TEMPLATE.
    .
               Refer to new content in "IBM Backup and Restore
               Manager for z/VM - Administration Guide" for
               details of configuring large tape block size.
    .
    Messages:  New messages, BKRJOB9659W, BKRJOB9660I and
               BKRJOB9661I may be displayed.
    .
    Fix      - For SFS based installation, BKRSTART EXEC has
               to be invoked with parameters passing the
               CONFIG and BKRUME location.
    .
               The sample profile exec, BKRSTPRF SAMPEXEC, has
               been modified and a sample BKRSTART command
               specific to SFS installation has been included.
    .
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All users                                    *
    ****************************************************************
    * PROBLEM DESCRIPTION: Exploit IBM updates to CMS for Large    *
    *                      Tape Block Size (256K) support;bug fix  *
    ****************************************************************
    Enhance -  With APAR VM66724, IBM has enhanced CMS to support
               Large Tape Block Size (256k). IBM Backup and Restore
               Manager has been enhanced to exploit large tape block
               size (256k), from the current 64k, for both Backup
               and Restore tasks involving TAPE I/O Handler.
               Customers may choose to exploit this feature by
               configuring large tape block size in BKRSYSTM CONFIG
               and/or <job> TEMPLATE. Refer to new content in "IBM
               Backup and Restore Manager for z/VM - Administration
               Guide" for details of configuring large tape block
               size.
    Fix     -  The sample profile exec, BKRSTPRF SAMPEXEC, has
               been modified and a sample BKRSTART command
               specific to SFS installation has been included.
    Fix     -  Backup jobs configured to use DISKPOOL (CMSFILE)
               output media fail with multiple occurrences of
               message BKREDO8103E DMSOPEN return code 8, reason
               code 90420, when the worker executes on member
               system 5, 6, 7 or 8 of a >4-member SSI cluster.
               DIAG2CC MODULE has been modified to address this
               issue.
    Fix     -  Fix warning BKRCAT9224W Return code 70 from QUERY
               FILEPOOL CATALOG, during initialization of catalog
               server virtual machine.
    

Problem conclusion

Temporary fix

Comments

APAR Information

  • APAR number

    PH57657

  • Reported component name

    BACKUP RESTORE

  • Reported component ID

    5697J0600

  • Reported release

    130

  • Status

    CLOSED UR1

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    YesSpecatt / New Function / Xsystem

  • Submitted date

    2023-10-19

  • Closed date

    2023-10-26

  • Last modified date

    2023-11-30

  • APAR is sysrouted FROM one or more of the following:

  • APAR is sysrouted TO one or more of the following:

    UI94123

Modules/Macros

  • BAKSRVR  BKRBFSLD BKRBFSTL BKRBLSRV BKRJOBEX BKRSTART BKRSTPRF
    BKRSYSTM BKRUME   BKRUMEB  CATSRVR  CHKBIGB  DIAG2CC  DUMPCKD
    DUMPEDF  DUMPFBA  DUMPSFS  LOADCKD  LOADDDL  LOADEDF  LOADFBA
    LOADSFS  MAKEJOB  RELOAD   WRKSRVR
    

Fix information

  • Fixed component name

    BACKUP RESTORE

  • Fixed component ID

    5697J0600

Applicable component levels

  • R130 PSY UI94123

       UP23/11/15 P 2311  

Fix is available

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Document Information

Modified date:
04 December 2023