IC86976: PERFORMANCE IMPROVEMENT FOR FILE LIST BASED EXPIRATION PROCESSING OF THE BACKUP ARCHIVE CLIENT

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • Progressive incremental backup processing implements an
    efficient method to expire file system objects on the TSM server
    if they were deleted locally before the backup run has started.
    This efficient method is not implemented for the file list based
    expiration of file system objects. Since the file list based
    expiration method is used in GPFS mmbackup, the elapsed run time
    for this feature has a significant impact to the overall
    performance of the mmbackup operation. With this APAR the
    efficient algorithm used in the expiration processing of the
    progressive incremental backup will be applied for the file list
    based expiration processing.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: TSM backup-archive clients version 5.4 to    *
    *                 6.4 running on all supported platforms.      *
    ****************************************************************
    * PROBLEM DESCRIPTION: See ERROR DESCRIPTION                   *
    ****************************************************************
    * RECOMMENDATION: Apply fixing level when available. This      *
    *                 problem is currently projected to be fixed   *
    *                 in level 6.4.1. Note that this is subject to *
    *                 change at the discretion of IBM.             *
    ****************************************************************
    *
    

Problem conclusion

  • A new approach was implemented for the filelist expiration
    process. It no longer queries the server for every individual
    file and fills in the transaction based on the TXNGROUPMAX
    option  value.
    

Temporary fix

  • Please contact IBM support for 6.4.0-based workaround if
    needed before 6.4.1 is available.
    

Comments

APAR Information

  • APAR number

    IC86976

  • Reported component name

    TSM CLIENT

  • Reported component ID

    5698ISMCL

  • Reported release

    64L

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-10-05

  • Closed date

    2013-03-22

  • Last modified date

    2013-03-22

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

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

Modules/Macros

  • DSMC
    

Fix information

  • Fixed component name

    TSM CLIENT

  • Fixed component ID

    5698ISMCL

Applicable component levels

  • R64A PSY

       UP

  • R64H PSY

       UP

  • R64L PSY

       UP

  • R64M PSY

       UP

  • R64S PSY

       UP

  • R64W PSY

       UP



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Document information


More support for:

Tivoli Storage Manager

Software version:

64L

Reference #:

IC86976

Modified date:

2013-03-22

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