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IC94759: VOLUME CLEAR LOCK AT SERVER STARTUP FOR AN ACSLS LIBRARY MAY NEED A LONG TIME

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • At Tivoli Storage Manager server startup all library volumes
    for an ACSLS library are locked when they are in use.
    The volume clear lock is running for each library volume one
    after the other.
    This may take a long time when a high number of library volumes
    are in use and might result in long mediawaits.
    
    This APAR is opened to document the requirement to skip this
    lock processing during server startup.
    
    Customer/L2 Diagnostics :
    Example from a trace of the start of s server with
    TRACE ENABLE MMS being placed in the dsmserv.opt file:
    
    13:48:04.985 [20][mmsacsls.c][7174][LibClearLock]:Begin
      LibClearLock type=6
    
    -> approx. 2 seconds later:
    
    13:48:07.098 [20][mmsacsls.c][7204][LibClearLock]:ClrVolLock
      successful for vol = O01001.
    13:48:07.098 [20][mmsacsls.c][7218][LibClearLock]:End
      LibClearLock with rc = 0.
    
    Next volume:
    
    13:48:07.098 [20][mmsacsls.c][7174][LibClearLock]:Begin
      LibClearLock type=6
    13:48:09.211 [20][mmsacsls.c][7204][LibClearLock]:ClrVolLock
      successful for vol = O01002.
    
    -> approx. 2 seconds later:
    
    13:48:09.211 [20][mmsacsls.c][7218][LibClearLock]:End
      LibClearLock with  rc = 0.
    
    Tivoli Storage Manager Versions Affected:
    Tivoli Storage Manager Server version 5,5, 6.1, 6,2, 6,3 on
    all supported platforms
    
    Initial Impact:
    low
    
    Additional Keywords:
    TSM zz61 zz62 zz63 ACSLS lock
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All Tivoli Storage Manager server users of   *
    *                 ACSLS libraries.                             *
    ****************************************************************
    * PROBLEM DESCRIPTION: See ERROR DESCRIPTION                   *
    ****************************************************************
    * RECOMMENDATION: Apply fixing level when available. This      *
    *                 problem is currently projected to be fixed   *
    *                 in level 6.3.5. Note that this is subject    *
    *                 to change at the discretion of IBM.          *
    ****************************************************************
    *
    

Problem conclusion

  • This problem was fixed.  The volume unlock processing at library
    
    initialization will only be done if the new option below is
    enabled as follows:
    
    ACSINITVOLUMEUNLOCK  YES
    
    Affected platforms:  AIX, HP-UX, Solaris, Linux, and Windows.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IC94759

  • Reported component name

    TSM SERVER

  • Reported component ID

    5698ISMSV

  • Reported release

    62A

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-08-09

  • Closed date

    2013-10-03

  • Last modified date

    2013-10-03

  • 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

  • R62A PSY

       UP

  • R62H PSY

       UP

  • R62L PSY

       UP

  • R62S PSY

       UP

  • R62W PSY

       UP

  • R63A PSY

       UP

  • R63H PSY

       UP

  • R63L PSY

       UP

  • R63S PSY

       UP

  • R63W PSY

       UP



Document information

More support for: Tivoli Storage Manager

Software version: 62A

Reference #: IC94759

Modified date: 03 October 2013