IC91241: HSM FOR WINDOWS RECONCILIATION MIGHT CREATE ORPHAN IF FILE WAS RESTORED AND IS RE-MIGRATED DURING RECONCILIATION

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • When HSM for Windows reconciliation and migration run
    simultaneously files that were previously restored to the
    resident state can become orphans. The problem occurs if such a
    file is re-migrated during a short time interval between the end
    of reconciliation's file system scan and it's deletion of the
    file on the TSM server. If in this time interval the migration
    job re-stubs the file without sending the data to TSM server
    again, because it has detected that a valid file is stored on
    TSM server, the file becomes an orphan.
    The problem does not occur for files which have been recalled
    before the re-migration, because the file object id does not
    change in this case. Reconciliation does not select files on
    TSM server for deletion if the file on the TSM server and the
    corresponding resident file on the file system have the same
    file object id.
    
    TSM Versions Affected:
    Tivoli Storage Manager HSM for Windows versions
    5.5.0.0 - 5.5.3.1, 6.1.0.0 - 6.1.5.1,
    6.3.0.0 - 6.3.1.0, 6.4.0.0
    
    Customer/L2 diagnostics:
    
    
    Initial Impact:
    
    Additional Keywords: HSM for Windows, reconcile, orphan stubs
    

Local fix

  • Do not run migration and reconciliation simultaneously.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED: TSM HSM for Windows Client Versions          *
    *                 5.5.0.0 - 5.5.3.1, 6.1.0.0 -6.1.5.1,         *
    *                 6.3.0.0 - 6.3.1.0, 6.4.0.0                   *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * For detailed description see ERROR DESCRIPTION               *
    ****************************************************************
    * RECOMMENDATION: Apply fixing level when available. This      *
    *                 problem is currently projected to be fixed   *
    *                 in fixes later than 6.3.1 and later than     *
    *                 6.4.0, no interim fix is planned for versions*
    *                 5.5.x.x and 6.1.5.x                          *
    ****************************************************************
    

Problem conclusion

  • In previous versions without this APAR fix an obsolete object
    was deleted in a single reconciliation process.
    With this APAR fix an object is deleted only after two
    reconciliation processes are run.
    After a stub is deleted, the first reconciliation marks the
    object on the Tivoli Storage Manager server. If the stub is not
    restored before the second reconciliation, the object is deleted
    from Tivoli Storage Manager server storage. If the stub is
    restored after the first reconciliation, the object is unmarked
    on the Tivoli Storage Manager server and is no longer a
    candidate for deletion. The reconciliation log file lists
    objects that are marked or unmarked or deleted during
    reconciliation.
    

Temporary fix

  • see local fix
    

Comments

APAR Information

  • APAR number

    IC91241

  • Reported component name

    TSM HSM FOR WIN

  • Reported component ID

    5698ICNCL

  • Reported release

    630

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-04-03

  • Closed date

    2013-05-06

  • Last modified date

    2013-05-06

  • 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 HSM FOR WIN

  • Fixed component ID

    5698ICNCL

Applicable component levels

  • R630 PSY

       UP

  • R640 PSY

       UP



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Document information


More support for:

Tivoli Storage Manager HSM for Windows

Software version:

630

Reference #:

IC91241

Modified date:

2013-05-06

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