IC70059: DEADLOCK CONDITION MAY OCCUR DURING TAPE MOUNT ON LIBRARY MANAGER

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • A tape mount request from a library client may fail as a result
    of a deadlock condition on the library manager.  Errors similar
    to the following will be seen in the library manager's activity
    log:
    
       ANR0379W A server database deadlock situation has been
       encountered; the lock request for the mms universe lock, will
       be denied to resolve the deadlock.
       ANR9790W Request to mount volume *SCRATCH* for library client
       LIBCLIENT failed.
    
    The problem is most likely to occur when there are active LABEL
    LIBVOLUME, RELABEL and/or CHECKIN LIBVOLUME processes running on
    the library manager at the time the tape mount is requested.
    
    Platforms affected:
    All TSM Servers
    
    Customer/L2 Diagnostics:
    A trace (DEADLOCK flag) on the library manager will show that
    the deadlock condition occurs when one transaction is holding
    the 'mms universe' lock (lock type 23000), while trying to
    acquire the 'ic lock voltype' lock (lock type 77778).  The other
    transaction is holding the 'ic lock voltype' lock and trying to
    acquire the 'mms universe' lock, as seen below:
    
       A Deadlock was found:
       Transaction 0:121244072.
         Waiting for Lock mode sLock on: Type=77778(unknown),
         NameSpace=19, Key=''
         Held by transaction 0:121244067 in mode xLock.
       Transaction 0:121244067.
         Waiting for Lock mode xLock on: Type=23000(mms universe),
         NameSpace=0, Key=''
         Held by transaction 0:121244072 in mode xLock.
    
    Additional Keywords:
    mms_universe ic_lock_voltype
    

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 levels 5.5.6, 6.1.5, and 6.2.2.           *
    *                 Note that this is subject to change at the   *
    *                 discretion of IBM.                           *
    ****************************************************************
    See ERROR DESCRIPTION.
    Affected Platforms: AIX, HP-UX, Sun Solaris, Linux, and Windows.
    

Problem conclusion

  • The described problem has been resolved.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IC70059

  • Reported component name

    TSM SERVER

  • Reported component ID

    5698ISMSV

  • Reported release

    61A

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2010-07-20

  • Closed date

    2010-07-29

  • Last modified date

    2010-07-29

  • 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

  • R55A PSY

       UP

  • R55H PSY

       UP

  • R55L PSY

       UP

  • R55S PSY

       UP

  • R55W PSY

       UP

  • R61A PSY

       UP

  • R61H PSY

       UP

  • R61L PSY

       UP

  • R61S PSY

       UP

  • R61W PSY

       UP

  • R62A PSY

       UP

  • R62H PSY

       UP

  • R62L PSY

       UP

  • R62S PSY

       UP

  • R62W PSY

       UP



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Document information


More support for:

Tivoli Storage Manager

Software version:

61A

Reference #:

IC70059

Modified date:

2010-07-29

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