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IT21643: LAN-FREE BACKUPS MAY FAIL WITH "NO SPACE AVAILABLE IN STORAGE POOL"

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • LAN-free  backups can fail with ANR0522W "no space available in
    storage pool" despite there being scratch tapes available and
    the pool not having reached the MaxScratch value.
    
    The issue here is that MaxScratch value for the storage pool is
    calculated by adding both the NumScratchVols and NumRsvdScratch.
    These values are seen in the output to the SHOW SSPOOL command.
    Once the total reached the MaxScratch value then any session or
    process that requires a scratch volume will fail with
    "insufficient/no space in storage pool" messages such as
    ANR0522W, ANR1086E or ANR1149W
    
    The problem addressed here is that the NumRsvdScratch can
    increase after a mount request has failed in a library sharing
    environment, so this would most likely happen with LAN-free
    backups or archives.
    
    
    In the case here we have a Library Manager, Library Client and
    Storage Agent involved.
    
    30/06/2017 14:26:00      ANR8779E (Session: 59, Origin: STA1)
    Unable to open drive Tape34, error number= 2. (SESSION: 59)
    30/06/2017 14:26:01      ANR0409I (Session: 59, Origin: STA1)
    Session 28646 ended for server Lib_Mgr (AIX). (SESSION: 59)
    30/06/2017 14:26:01      ANR1401W (Session: 59, Origin: STA)
    Mount request denied for volume Vol001 - mount failed.
    (SESSION: 59)
    30/06/2017 14:26:01      ANR0530W Transaction failed for session
    175 for node Node1 (TDP VMware) - internal server error
    detected. (SESSION: 175)
    
    At this point the NumRsvdScratch (on the library manager)
    increases by 1 in the 'SHOW SSPOOL' output.
    
    
    L2 Diagnostics
    
    
    Currently, if a mount operation fails to mount a scratch volume
    with the error code 3028 (GRC_MOUNT_DENIED) the server should
    reset the number of the scratch volume count, currently, the
    server does not do this.
    
    You could see errors such as this in a trace:-
    
    14:26:01.159 [572][sstrans.c][4898][ssStoreLFServer]:Storage
    agent volume mount failed with rc = 3028.
    14:26:01.159 [572][sstrans.c][4919][ssStoreLFServer]:Processing
    opRc 3028 for ssVolumeMounted.
    
    And the NumRsvdScratch increases in the SHOW SSPOOL output.
    
    
    IBM Spectrum Protect versions Affected:   All supported versions
    on all platforms
    
    
    Initial Impact:
    Medium
    
    Additional Keywords:
    TSM   IBM Spectrum Protect Max Scratch Lanfree
    

Local fix

  • Check why the volume mount failed.
    Increase the number of scratch volumes that can be used by the
    storage pool
    Restart the Server to reset the NumRsvdScratch value.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * All IBM Tivoli Storage Manager and IBM Spectrum Protect      *
    * server users of scratch mount operation.                     *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See error description.                                       *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Apply fixing level when available. This problem is currently *
    * projected to be fixed in levels 7.1.9 and 8.1.3. Note that   *
    * this is subject to change at the discretion of IBM.          *
    ****************************************************************
    

Problem conclusion

  • This problem was fixed.
    Affected platforms: AIX, HP, Linux, Solaris, and Windows
    Platforms fixed:  AIX, HP, Linux, Solaris, and Windows
    

Temporary fix

Comments

APAR Information

  • APAR number

    IT21643

  • Reported component name

    TSM SERVER

  • Reported component ID

    5698ISMSV

  • Reported release

    71A

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2017-08-03

  • Closed date

    2017-08-08

  • Last modified date

    2017-08-08

  • 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 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

  • R81A PSY

       UP

  • R81L PSY

       UP

  • R81W PSY

       UP



Document information

More support for: Tivoli Storage Manager

Software version: 7.1.3

Reference #: IT21643

Modified date: 08 August 2017