IBM Support

IT04486: NAS BACKUP TO A REMOTE DRIVE EXCEEDS 2.1 TERABYTES IN SIZE OVERWRITES THE LAST BACKUP ON THE TAPE

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APAR status

  • Closed as program error.

Error description

  • When a  NAS backup to a remote drive (devtype=NAS, storage
    pool dataformat=*dump) exceeds 2.1 Terabytes in size, the
      next backup written to the same tape will overwrite the
      last backup on the tape.
      The Tivoli Storage Manager is tracking the number of
      kilobytes during the write operation of an NDMP backup.
      This value is eventually used to determine the append
      position of the volume. If number of kilobytes written
      exceeds the maximum value of a signed int32
      (2,147,483,647) variable, then the append position is
      not incremented ausing the backup to be overwritten
      on the next backup to this tape.
    Tivoli Storage Manager Versions Affected:
      All platforms and version.
    Customer/L2 Diagnostics (If Applicable):
      A trace using the flags PVRROPEN, PVRRCLOSE, PVRRREAD,
      PVRRWRITE, PVRRPOS, PVRRERROR, PVRVOL of the backup
      will show the following output:
    
      [ndmpspi.c][nnnn][spiTrace]: Leaving spiStoreSeg, rcNdmp
          0, wrote 2516120558592 bytes, handle: 0x6a1f688.
    
      NOTE: this is the key trace statement below, which is
        displayed at the end of the backup or tape change. The
        negative number for kbytes indicates the error:
      [pvrnas.c][nnn][NasWrite]:In NasWrite, mpP is 0x6386868,
          kbytes is -1837818313
      [asalloc.c][nnnn][AsApplySeg]:AsApplySeg: Archival segment
          being applied (VolId=10463, Start=13, Offset=0,
          Size=2516120558592).
      Also, during a point in time restore operation of the first
      image found on the volume the last image backed up to the
      volume is always restored.
    
    Initial Impact:
      High
    Additional Keywords:
      NDMP OVERWRITE
    

Local fix

  • If the backup image exceeds 2.1 TB in size, limit one
      image to a volume.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * All Tivoli Storage Manager users of NDMP backups to          *
    * NAS-attached tape drives.                                    *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See Error Description                                        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Apply fixing level when available. This problem is currently *
    * projected to be fixed in levels 6.2.7, 6.3.5.100, 6.3.6,     *
    * 7.1.1.1, 7.1.3.  Note that this is subject to change at the  *
    * discretion of IBM.                                           *
    ****************************************************************
    

Problem conclusion

  • The problem was fixed.
    Affected platforms: AIX, HP-UX, Solaris, Linux, and Windows
    

Temporary fix

Comments

APAR Information

  • APAR number

    IT04486

  • Reported component name

    TSM SERVER

  • Reported component ID

    5698ISMSV

  • Reported release

    63L

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2014-09-18

  • Closed date

    2014-10-04

  • Last modified date

    2015-01-28

  • 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

  • R62A PSY

       UP

  • R62H PSY

       UP

  • R62L PSY

       UP

  • R62S PSY

       UP

  • R62W PSY

       UP

  • 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: 63L

Reference #: IT04486

Modified date: 28 January 2015