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IT07131: PROCESS HANG WITH COMPETING RELABEL PROCESS AND ANOTHER LIBRARY PROCESS

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APAR status

  • Closed as program error.

Error description

  • VTL Auto Relabel process and any other concurrent Library
    activity like Label Libvolume process hang.  There is a timing
    problem with the competing Library processes.   Depending on
    what process needs to wait for the other library activity, will
    hang indefinitely.  If (for example) Label Libv has to wait for
    the Auto Relabel, then only the Label Libv hangs.   The Auto
    Relabel will finish successfully.  The Cancel Process will mark
    the hung process as canceled, but the hung process never is
    canceled.  The Tivoli Storage Manager server has to be halted
    and restarted to clear the hung process.
    
    Tivoli Storage Manager Versions Affected:  All 7.1
    
    Diagnostics:
    Trace with MMS trace flag:
    Auto Relabel:
    10:47:21.776 [1211606][output.c][7407][PutConsoleMsg]:ANR0984I
    Process 6810 for RELABEL started in the BACKGROUND at 10:47:21.~
    10:47:21.777 [1211606][output.c][7407][PutConsoleMsg]:ANR8799I
    RELABEL: Operation for library STLPT started as process 6810.~
    10:47:21.777
    [1212131][mmsscsi.c][16059][AutoLabelVolume]:Automatic Label of
    Volumes in library STLPT.
    10:47:21.778
    [1212131][mmsscsi.c][13106][BeginActivity]:Beginning CHECKIN
    activity for SCSI library STLPT.
    10:47:21.778 [1212131][mmslib.c][7399][MmsFindLibDesc]:Finding
    descriptor for library STLPT (Desc Any State).
    10:47:21.778 [1212131][mmsscsi.c][13224][BeginActivity]:Activity
    CHECKIN waiting to start.
    
    Label Libvolume:
    10:43:16.430 [1211637][mmsscsi.c][16564][EELabelVolume]:Labeling
    of Volumes via EE ports in library STLPT.
    10:43:16.430
    [1211637][mmsscsi.c][13106][BeginActivity]:Beginning CHECKIN
    activity for SCSI library STLPT.
    10:43:16.431 [1211637][mmslib.c][7399][MmsFindLibDesc]:Finding
    descriptor for library STLPT (Desc Any State).
    10:43:16.431 [1211637][mmsscsi.c][13224][BeginActivity]:Activity
    CHECKIN waiting to start.
    10:47:21.779 [1211637][mmsscsi.c][13234][BeginActivity]:Activity
    CHECKIN reawakened with rc 0.
    10:47:21.779
    [1211637][mmsscsi.c][17753][StartOperRequest]:Skipping request
    of user action maxWait is 0.
    10:47:21.780 [1211637][mmsscsi.c][12422][RetractPort]:Retracting
    import/export station for library STLPT using element address
    64514.
    10:47:21.780 [1211637][mmslib.c][8214][MmsAcquireAuto]:Acquiring
    autochanger; lib=STLPT, wait=1.
    
    In this case the Auto Relabel hung and the Label Libv was
    reawakened and finished processing.
    
    Initial Impact: High - Due to the need to restart Tivoli Storage
    Manager server
    
    Additional Keywords: CHECKIN LIBVOLUME AUDIT LIBRARY CHECKOUT
    LIBVOLUME
    

Local fix

  • Restart Tivoli Storage Manager server to clear the hung process
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * All Tivoli Storage Manager users of virtual tape libraries.  *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See error description.                                       *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Apply fixing level when available. This problem is currently *
    * projected to be fixed in                                     *
    * levels 6.3.6 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, Linux, Solaris, Windows.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IT07131

  • Reported component name

    TSM SERVER

  • Reported component ID

    5698ISMSV

  • Reported release

    71A

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2015-02-12

  • Closed date

    2015-04-09

  • Last modified date

    2015-04-09

  • 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

  • R63A PSY

       UP

  • R63H PSY

       UP

  • R63L PSY

       UP

  • R63S PSY

       UP

  • R63W PSY

       UP

  • 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 #: IT07131

Modified date: 09 April 2015