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IT13988: ANR8311E AND ANR8355E I/O ERROR READING LABEL, BUT VOLUME IS NOT MARKED AS UNAVAILABLE

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • While writing data to a tape volume, under some rare
    circumstances a volume header may get damaged because of a
    hardware error on the tape library. Since the label of a tape
    volume is only verified at mount and dismount operation, this
    volume label damage is detected at dismount operation where the
    label is verified, but the volume is not marked as unavailable
    although the data written on this tape is unreadable.
    
    These messages are shown in the actlog:
    
    ANR8336I Verifying label of LTO volume aaaa in drive xxxx.
    ANR8311E: An I/O error occurred while accessing drive xxxx for
    READ operation, errno = 0, rc = 1.
    ANR8355E I/O error reading label for volume aaaa in drive xxxx.
    ANR8468I LTO volume aaaa dismounted from drive xxxx in library
    bbbb.
    
    
    The trace with traceflags MMS PVR NA shows the problem:
    
    ANR8336I Verifying label of LTO volume aaaa in drive xxxx
    (/dev/yyyy).
    ANR8944E Hardware or media error on drive aaaa   (/dev/yyyy)
    with volume aaaa(OP=READ, Error Number= 110,
    CC=0, KEY=03, ASC=11, ASCQ=00,
    SENSE=F0.00.03.00.00.00.00.58.00.00.00.00.11.00.00.00.00-
    .00.00.00.00.01.55.36.32.34.30.38.20.00.00.00.00.00.00.0-
    0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.-
    00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00-
    .00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0-
    0.00.00.00.00, Description=An undetermined error has
    occurred). Refer to the Tivoli Storage Manager
    documentation on I/O error code descriptions.
    ANR8355E I/O error reading label for volume aaaa in drive xxxx.
    
    If the volume label  can not be read, the volume should be
    marked as unavailable and should not be used later on.
    
    
    Customer/L2 Diagnostics:
    Tivoli Storage Manager server does not specifically check the
    unrecovered read error with SCSI sense data 03/11/00.
    When the server fails to read a tape volume with this sense
    data, the server just detects the medium error of this volume
    and stops this I/O.
    The server does not realize that this medium error is an
    unrecovered read error and mark the volume as unusable.
    
    
    Tivoli Storage Manager Server Version Affected:
    Tivoli Storage Manager Server 6.3 and 7.1 on all supported
    plattforms
    
    
    Initial Impact:
    High
    Additional Keywords:
    TSM server Spectrum Protect library drive tape volume
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * All Tivoli Storage Manager server users of IBM LTO tape      *
    * drives.                                                      *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See error description.                                       *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Apply fixing level when available. This problem is currently *
    * projected to be fixed in level 7.1.6.                        *
    * 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

    IT13988

  • Reported component name

    TSM SERVER

  • Reported component ID

    5698ISMSV

  • Reported release

    63A

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2016-03-04

  • Closed date

    2016-04-15

  • Last modified date

    2016-04-15

  • 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: 63A

Reference #: IT13988

Modified date: 15 April 2016