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IC95962: DEDUPLICATION LIMITATION IN STORAGE POOL PARAMETERS

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APAR status

  • Closed as documentation error.

Error description

  • A limitation about primary sequential storage pools used for
    deduplication is missing from the documentation.
    Some values for the AUTOCOPY and COPYSTGPOOLS / ACTIVEDATAPOOLS
    parameters are mutually exclusive when deduplication is enabled.
    
    Either there is no copy or active datapool defined, and
    therefore the autocopy parameter does not apply and its value is
    not checked, or a copy pool or active data pool is referenced
    and the autocopy parameter can only be set to NONE or MIGR.
    Otherwise no deduplication takes place for client backup
    sessions.
    This does not affect node replication processes.
    
    Tivoli Storage Manager Versions Affected:
    Tivoli Storage Manager Server 6.2 and later on all platforms
    
    Initial Impact: Medium
    
    Additional Keywords: zztsm dedup autocopy ANS4164W
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All Tivoli Storage Manager server users.     *
    ****************************************************************
    * PROBLEM DESCRIPTION: See error description.                  *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    *
    

Problem conclusion

  • In the Tivoli Storage Manager Administrator's Reference, the
    sections
    for "DEFINE STGPOOL" and "UPDATE STGPOOL" for sequential-file
    storage pools will be updated to provide the following
    instructions under
    the AUTOCOPY option:
    
    "If the AUTOCOPY option is set to ALL or CLIENT, and there is
    at least one storage pool that is listed in the COPYSTGPOOLS
    or ACTIVEDATAPOOLS options, any client-side deduplication is
    disabled."
    
    Affected platforms:  AIX, HP-UX, Solaris, Linux, and Windows.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IC95962

  • Reported component name

    TSM SERVER

  • Reported component ID

    5698ISMSV

  • Reported release

    63W

  • Status

    CLOSED DOC

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-09-16

  • Closed date

    2013-10-29

  • Last modified date

    2013-10-29

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

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

Publications Referenced
SC23977503 SC23977603 SC23977703 SC23977803 SC23977903

Fix information

Applicable component levels



Document information

More support for: Tivoli Storage Manager

Software version: 63W

Reference #: IC95962

Modified date: 29 October 2013