IC63331: PERFORMANCE WHEN READING DATA FROM DISK OR FILE POOLS IS ABNORMALLY LOW

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • Performance when reading data from disk or file pools is
    abnormally low while DB2 processes consume high CPU. The
    performance degradation for the process in question can be
    observed during any operation reading disk or file storage
    pools, e.g. migration, reclamation, move data, move nodedata,
    generate backupset etc. On systems with larger databases these
    processes can take a long time each.
    
    Example:
    An export of a Tivoli Storage Manager node with 3,2 GB of active
    data to a file device class took approximately 5 minutes whereas
    a GENERATE BACKUPSET for this node to the file device class took
    several hours.
    
    
    TSM Versions Affected:
    TSM Server 6.1 on all platforms
    
    Initial Impact:
    Medium
    
    Additional Keywords:
    sql db2 index zz61 select backupset performance process
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All Tivoli Storage Manager 6.1 server users. *
    ****************************************************************
    * PROBLEM DESCRIPTION: See error description.                  *
    ****************************************************************
    * RECOMMENDATION:                                              *
    *                 Apply fixing level when available. This      *
    *                 problem is currently projected to be fixed   *
    *                 in levels 6.1.2.1 and 6.1.3. Note that this  *
    *                 is subject to change at the discretion of    *
    *                 IBM.                                         *
    ****************************************************************
    *
    

Problem conclusion

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

Temporary fix

Comments

APAR Information

  • APAR number

    IC63331

  • Reported component name

    TSM SERVER

  • Reported component ID

    5698ISMSV

  • Reported release

    61W

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2009-09-23

  • Closed date

    2009-10-02

  • Last modified date

    2009-10-02

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

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

Fix information

  • Fixed component name

    TSM SERVER

  • Fixed component ID

    5698ISMSV

Applicable component levels

  • R61A PSY

       UP

  • R61H PSY

       UP

  • R61L PSY

       UP

  • R61S PSY

       UP

  • R61W PSY

       UP



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Document information


More support for:

Tivoli Storage Manager

Software version:

61W

Reference #:

IC63331

Modified date:

2009-10-02

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