IC63841: MOVE DATA/NODEDATA COMMAND WITH RECONSTRUCT=NO CAN CAUSE DATA INTEGRITY ISSUES IN DEDUPLICATED STORAGEPOOLS.

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • Moving data out of a deduplicated storage pool with either MOVE
    DATA or MOVE NODEDATA commands can cause data integrity issues
    if the RECONSTRUCT parameter is set to NO. Any data that had
    been linked in the deduplicated storage pool at the time of the
    move operation will be corrupted in the
    target pool. The following ANR9999D message is one symptom of
    this issue:
    ANR9999D_XXXXXXXX BfGetBitfileExtents(bfaggrut.c:4298)
    Thread<598>: BFBE Entry not found for object BITFILE_ID
    (SESSION: SESSID)
    ANR9999D_XXXXXXXX bfRtrv(bfrtrv.c:982) Thread<598>:
    Total size of extents (EXTENT_ID) doesn't match original
    size (SIZE) for object (BITFILE_ID2) in super bitfile
    (SUPERBITFILE_ID) (SESSION: SESSID)
    ANR0546W Retrieve or restore failed for session SESSID for
    node NODENAME - internal server error detected.
    (SESSION: SESSID)
    Another symptom of this problem is that occupancy numbers for
    the node(s) that were moved will be invalid which will be
    evident from Q OCCupancy output or messages issued to the
    activity log. The symptoms may vary depending upon the operation
    that attempts to access these files and the extent of the
    corruption. The overall theme is that there will be some missing
    parts to the bitfile which in most cases will be a missing
    extent.
    Tivoli Storage Manager Versions Affected: 6.1
    Initial Impact: HIGH
    Additional Keywords: TSM, dedup, deduplicate, deduplication,
    referential integrity, data loss, restore failure, occupancy,
    chunk, extent, link, linked
    

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 6.1.2.1 and 6.1.3.                  *
    *                 Note that this is subject to change at the   *
    *                 discretion of IBM.                           *
    ****************************************************************
    See ERROR DESCRIPTION.
    

Problem conclusion

  • The described problem has been resolved.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IC63841

  • Reported component name

    TSM SERVER

  • Reported component ID

    5698ISMSV

  • Reported release

    61W

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2009-10-19

  • Closed date

    2009-11-04

  • Last modified date

    2009-11-04

  • 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 #:

IC63841

Modified date:

2009-11-04

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