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IC81195: PARALLEL BACKUP STG PROCESSES FOR THE SAME DISK STORAGE POOL DO NOT COPY ALL DATA

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • When running more than one BACKUP STG process in parallel for
    the same source disk storage pool (e.g. for creating copies in
    different libraries or data centers), not all data will be
    copied to all target storage pools due to internal locks on
    objects. The final statistics of the BACKUP STG processes
    indicate successfully completed operation including all data
    copied but verifying the data stored in the primary disk storage
    pool and the copy storage pools using the Q OCC command will
    illustrate not all data was copied to each copy storage pool.
    
    Example:
    - Primary disk storage pool 1 has objects A, B and C
    - Two BACKUP STG processes are startet in parallel copying data
    to pools 2 and 3
    - Objects A and C are locked by BACKUP STG copying to pool 2
    - Object B is locked by BACKUP STG copying to pool 3
    - BACKUP STG copying to pool 3 will silently skip A and C
    - BACKUP STG copying to pool 2 will silently skip B
    
    This exclusive lock behavior was introduced due to changes made
    for APAR IC61439.
    
    A subsequent run of the BACKUP STG process will copy the missing
    objects.
    
    Platforms and versions affected:
    Tivoli Storage Manager 5.5.4 and above, 6.1.3 and above, 6.2 and
    6.3
    
    Initial Impact:
    Medium
    
    Additional Keywords:
    tsm movement data copy pool dr disk simultaneous storage pool
    xlock shared lock zztsm63 zz62 zztsm62 zz61 zztsm61
    

Local fix

  • Run BACKUP STG processes for the same disk storage pool one at a
    time.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All Tivoli Storage Manager server users.     *
    ****************************************************************
    * PROBLEM DESCRIPTION: See ERROR DESCRIPTION.                  *
    ****************************************************************
    * RECOMMENDATION: Apply fixing level when available. This      *
    *                 problem is currently projected to be fixed   *
    *                 in levels 5.5.7, 6.2.5 and 6.3.2.            *
    *                 Note that this is subject to change at the   *
    *                 discretion of IBM.                           *
    ****************************************************************
    *
    

Problem conclusion

  • This problem was fixed.
    Affected platforms:  AIX, HP-UX, Solaris, Linux, z/OS and
    Windows.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IC81195

  • Reported component name

    TSM SERVER

  • Reported component ID

    5698ISMSV

  • Reported release

    62W

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-02-03

  • Closed date

    2012-04-23

  • Last modified date

    2013-08-23

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

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

    PM83053

Fix information

  • Fixed component name

    TSM SERVER

  • Fixed component ID

    5698ISMSV

Applicable component levels

  • R55A PSY

       UP

  • R55H PSY

       UP

  • R55L PSY

       UP

  • R55S PSY

       UP

  • R55W PSY

       UP

  • R55Z PSY

       UP

  • R61A PSY

       UP

  • R61H PSY

       UP

  • R61L PSY

       UP

  • R61S PSY

       UP

  • R61W PSY

       UP

  • R62A PSY

       UP

  • R62H PSY

       UP

  • R62L PSY

       UP

  • R62S PSY

       UP

  • R62W PSY

       UP

  • R63A PSY

       UP

  • R63H PSY

       UP

  • R63L PSY

       UP

  • R63S PSY

       UP

  • R63W PSY

       UP

[{"Line of Business":{"code":"LOB26","label":"Storage"},"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSGSG7","label":"Tivoli Storage Manager"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"62W"}]

Document Information

Modified date:
19 September 2021