IBM Support

IT05874: INCORRECT BEHAVIOR WHEN ATTEMPTING TO WRITE TO STORAGE POOL VOLUMES ON READ-ONLY FILESYSTEMS

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APAR status

  • Closed as program error.

Error description

  • If a filesystem associated with a FILE device class is mounted
    as read-only, or becomes read-only as the result of some error
    condition, the Tivoli Storage Manager server does not properly
    handle failed attempts to write to new and/or existing volumes
    on the affected filesystem.  When attempting to append data to
    an existing storage pool volume, errors similar to the following
    may be seen in the activity log:
    
       ANR9905W Unable to open file /FILEPOOL/00000001.BFS.
       Read-only file system.
       ANR8501E System return code 22 received opening volume
       /FILEPOOL/00000001.BFS with file name /filepool/00000001.bfs.
       ANR1401W Mount request denied for volume
       /FILEPOOL/00000001.BFS - mount failed.
    
    The Tivoli Storage Manager server will attempt repeatedly to
    access the same volume resulting in unnecessary session and/or
    process failures.  The expectation is that, after the initial
    write failure, the server would update the access for the volume
    to read-only to prevent further attempts to write data to the
    volume.
    
    When attempting to write data to a new volume on a read-only
    filesystem, the Tivoli Storage Manager server will successfully
    create the scratch volume, but attempts to write data to the
    volume will fail with errors similar to the following:
    
       ANR1340I Scratch volume /FILEPOOL/00000001.BFS is now defined
       in storage pool FILEPOOL.
       ANR8503E A failure occurred in writing to volume
       /FILEPOOL/00000001.BFS.
       ANR1411W Access mode for volume /FILEPOOL/00000001.BFS now
       set to "read-only" due to write error.
    
    The access for the empty volume is then updated to read-only and
    the server proceeds to create a new scratch volume in the same
    filesystem.  This behavior may repeat until the defined storage
    pool limit for scratch volumes has been reached.  The Tivoli
    Storage Manager server should, after the initial write failure,
    only attempt to create new scratch volumes on another directory
    path, if possible.
    
    Tivoli Storage Manager Versions Affected:
    All versions and platforms
    
    Initial Impact:
    Low
    
    Additional Keywords:
    ANR9905W ANR8501E ANR8503E EROFS errno 30
    

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 level 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, Solaris, Linux, and Windows.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IT05874

  • Reported component name

    TSM SERVER

  • Reported component ID

    5698ISMSV

  • Reported release

    63L

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2014-12-02

  • Closed date

    2014-12-17

  • Last modified date

    2014-12-17

  • 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

  • R71A PSY

       UP

  • R71H PSY

       UP

  • R71L PSY

       UP

  • R71W PSY

       UP

  • R71S PSY

       UP



Document information

More support for: Tivoli Storage Manager

Software version: 63L

Reference #: IT05874

Modified date: 17 December 2014