IT13988: ANR8311E AND ANR8355E I/O ERROR READING LABEL, BUT VOLUME IS NOTMARKED AS UNAVAILABLE

7.1.6.000-TIV-TSMSRV-Linuxs390x
7.1.6.000-TIV-TSMSRV-Linuxppc64
7.1.6.000-TIV-TSMSRV-WIN
7.1.6.000-TIV-TSMSRV-SolarisSPARC
7.1.6.000-TIV-TSMSRV-Linuxx86_64
7.1.6.000-TIV-TSMSRV-HP-UX
7.1.6.000-TIV-TSMSRV-AIX
IBM Spectrum Protect Server V7.1 Fix Pack 6 (7.1.6.000) Downloads

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 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