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IC97702: JOURNAL BASED BACKUP INITIALIZATION CAN FAIL WITH "UNABLE TO ACC ESS THE SPECIFIED FILE"

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • The Tivoli Storage Manager client journal-based backup daemon
    can fail to completely generate its journal database during an
    initial incremental backup.  The following related errors can
    be found within the jbberror.log at the time of the failure:
    
     10/01/2013 09:06:04 ANS0361I DIAG: psfsmon.cpp ( 873):
                         psFsMonitorThread(tid 2): get pool RC=5022.
                         Unable to access the specified file
     10/01/2013 09:06:04 ANS0361I DIAG: psfsmon.cpp ( 570):
                         psMonitorThread(): exiting RC=2.
    
    These errors cause the partially generated journal database to
    be destroyed, which prevents the journal from being enabled for
    the specified filesystem.  Users will note that the following
    message is *not* printed to STDOUT during the initial
    incremental:
    
     ANS1760I Journal for 'X' enabled for node 'X' and server
              'X' Successful incremental backup of 'X'
    
    Without this informational message, the journal is not enabled.
    
    This problem is more likely to occur when journal based backups
    are enabled against large filesystems on busy systems.
    
    Initial Impact:
    High
    
    Tivoli Storage Manager Versions Affected:
    All Linux Tivoli Storage Manager users of journal based backups.
    
    Additional Keywords:
    TSM MSGANS0361I DIAG TSMJBBD RC5022 PSMONITORTHREAD ANS1761I
    MEMORY UNABLE FILE SPECIFIED JOURNAL JOURNALING JBBD ANS1760I
    

Local fix

  • None.  Continue using traditional incremental backups until
    the fix becomes available.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED: TSM 6.4 - TSM 7.1 Linux Journal Base         *
    *                 Backup (JBB) users installed on Linux        *
    *                 2.6.32 kernel versions and higher.           *
    ****************************************************************
    * PROBLEM DESCRIPTION: See ERROR DESCRIPTION                   *
    ****************************************************************
    * RECOMMENDATION: Apply fixing level when available. This      *
    *                 problem is currently projected to be fixed   *
    *                 in levels 6.3.2, 6.4.2 and 7.1.1. Note       *
    *                 that this is subject to change at the        *
    *                 discretion of IBM.                           *
    ****************************************************************
    *
    

Problem conclusion

  • Customers noticed that the Linux Journal Base Backup Daemon was
    receiving rc = 5022 from the Linux JBB driver.  Deeper analysis
    revealed that memory allocation failures were printed in the
    /var/log/messages file.
    
    It was determined that the Linux JBB driver was attempting to
    allocate only continuous blocks of memory and some other
    device on the system was holding the needed space.
    
    A fix was put in place to allocate continuous memory blocks
    if they are available and to use virtual blocks otherwise.
    

Temporary fix

  • The GPL source code for JBB Linux is availble for the customer
    to compile due to the nature of how Linux kernel drivers are
    supported.
    

Comments

APAR Information

  • APAR number

    IC97702

  • Reported component name

    TSM CLIENT

  • Reported component ID

    5698ISMCL

  • Reported release

    63L

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-11-15

  • Closed date

    2014-01-08

  • Last modified date

    2014-01-08

  • 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 CLIENT

  • Fixed component ID

    5698ISMCL

Applicable component levels

  • R63L PSY

       UP

  • R64L PSY

       UP

  • R71L PSY

       UP



Document information

More support for: Tivoli Storage Manager

Software version: 63L

Reference #: IC97702

Modified date: 08 January 2014