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IT06439: NODE REPLICATION WITH DEDUPLICATED DATA CAN PERFORM POORLY

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • Node replication experiences performance degradation when
    node/filespace has both deduplicated and non deduplicated data
    and some of that data is client side deduplicated.
    
    
    Run the following DB2 select command after connecting to the
    TSMDB1 database on the node replication target and source
    servers to see if this APAR applies to you-
    
    
    
    db2 "select digest_value, linkbfid, poolid, size, count(*) as
    count from tsmdb1.bf_bitfile_extents where linkbfid is NULL and
    digest_value=x'16E1F2786521AFCFF8A7FF1278224D29C457CAC9'
    group by digest_value, linkbfid, poolid, size"
    
    
    In the output of the SELECT, any count greater than 0 on the
    target when there are no records returned on the source
    indicates that this APAR applies.
    

Local fix

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 7.1.1.200 and 7.1.3. Note    *
    * that this is subject to change at the discretion of IBM.     *
    ****************************************************************
    

Problem conclusion

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

Temporary fix

Comments

APAR Information

  • APAR number

    IT06439

  • Reported component name

    TSM SERVER

  • Reported component ID

    5698ISMSV

  • Reported release

    71A

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2015-01-12

  • Closed date

    2015-03-02

  • Last modified date

    2015-06-01

  • 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

  • R71A PSY

       UP

  • R71H PSY

       UP

  • R71L PSY

       UP

  • R71S PSY

       UP

  • R71W PSY

       UP



Document information

More support for: Tivoli Storage Manager

Software version: 7.1.3

Reference #: IT06439

Modified date: 01 June 2015