IC64921: DELETE FILESPACE OF NODE USING DEDUPE FOR HIGH NUMBER OF LARGE OBJECTS CAUSED HIGH MEMORY USAGE

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • When issuing a 'DELETE FILESPACE' command for a filespace that
    contains data in a deduplicaion storage pool and includes a high
    number of very large files, the TSM server may exhibit a high
    amount of memory utilization.  Under these conditions, the
    'DELETE FILESPACE' process performance is severely degraded  as
    well potential memory paging issues that could cause further
    issues.  This is caused by areas of the dedupe processing that
    make calls for an in-memory list that is built during deletion
    processing.  At end transaction this list is added to a table
    that is then subsequently deleted by other backend server
    threads.  The current group size used for transaction in this
    processing can become prohibitive under the conditions.
    .
    Tivoli Storage Manager Versions Affected: TSM Server 6.1
    .
    Customer/L2 Diagnostics (If Applicable)
    .
    Initial Impact: Medium
    .
    Additional Keywords: performance slow crash exhaustion hang
    memory paging delete fi del
    

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 level 6.1.3.0, 6.1.4.0. 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

    IC64921

  • Reported component name

    TSM SERVER

  • Reported component ID

    5698ISMSV

  • Reported release

    61W

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2009-12-01

  • Closed date

    2009-12-16

  • Last modified date

    2009-12-16

  • 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 #:

IC64921

Modified date:

2009-12-16

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