IBM Support

IC98531: SERVER COULD OVERWRITE FILE VOLUME UNDER RARE CIRCUMSTANCES

Subscribe

You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • The Tivoli Storage Manager can potentially overwrite a file
    volume when the results from the operating system (OS) are
      invalid. This has only been reported on Network File
      Systems (NFS).
    
      When the server is going through the process to determine
      a new volume name, the directory is queried to see if the
      name already exists. If the OS relays the file does not
      exist then the server will create a 0 byte file using the
      new name. In this particular case, the OS returned that
      the file did not exist when in fact the file existed.
      Refer to the Diagnostic section below for additional
      details.
    Tivoli Storage Manager Versions Affected:
      5.5, 6.1, 6.2, 6.3 and 7.1
    Customer/L2 Diagnostics (If Applicable):
      This is only seen when you can issue an OS command
      to list the contents of a directory or the specifics
      of a file and the OS returns nothing or reports that
      the file does not exist. For example:
    
      root:prod# ls -l /tsm/00000090.bfs
      ls: 0653-341 The file /tsm/00000090.bfs does not exist.
      Then you issue the command again and it shows the
      following:
    
      root:prod# ls -l /tsm/00000090.bfs
      -rw-------  1 root system 1073741  /tsm/00000090.bfs
      One the server, the only way you might be able to see
      this occurring is the following message:
    
      ANR8449E Scratch volume /tsm/00000001.BFS rejected - volume
               name is already in use.
    
      This message indicates the server attempted to create
      the new volume but then realized there was already a
      reference to the file in the DB. At that time, the server
      will attempt to get a new volume name. The above message
      does not necessarily mean that your data has been
      overwritten because first the OS needs to be retuning
      inconsistent results.
    
    Initial Impact:
      Medium
    Additional Keywords:
      NFS LS CORRUPTION OVERWRITTEN
    

Local fix

  • 1) Determine why the OS is returning inconsistent results.
      2) Restore the data from a copypool, otherwise, the data
         is lost.
    

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 6.3.5 and 7.1.1. 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

    IC98531

  • Reported component name

    TSM SERVER

  • Reported component ID

    5698ISMSV

  • Reported release

    55A

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-12-31

  • Closed date

    2014-01-27

  • Last modified date

    2014-01-27

  • 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: 55A

Reference #: IC98531

Modified date: 27 January 2014