IT12435: ANR8311E ENOCONNECT 50 TAPE ERROR CAUSES IMMEDIATE CLIENT BACKUP FAILURE ON AIX

7.1.5.000-TIV-TSMSRV-AIX
7.1.5.000-TIV-TSMSRV-HP-UX
7.1.5.000-TIV-TSMSRV-Linuxppc64
7.1.5.000-TIV-TSMSRV-Linuxs390x
7.1.5.000-TIV-TSMSRV-Linuxx86_64
7.1.5.000-TIV-TSMSRV-SolarisSPARC
7.1.5.000-TIV-TSMSRV-WIN
6.3.6.000-TIV-TSMALL-Linuxx86_64
6.3.6.000-TIV-TSMALL-Linuxs390x
6.3.6.000-TIV-TSMALL-AIX
6.3.6.000-TIV-TSMALL-Linuxppc64
6.3.6.000-TIV-TSMALL-HP-UX
6.3.6.000-TIV-TSMSTA-WindowsI32
6.3.6.000-TIV-TSMALL-WindowsX64
6.3.6.000-TIV-TSMALL-SolarisSPARC
6.3.6.000-TIV-TSMAC-AIX
6.3.6.000-TIV-TSMAC-Linuxs390x
6.3.6.000-TIV-TSMAC-Linuxx86
6.3.6.000-TIV-TSMAC-SolarisSPARC
6.3.6.000-TIV-TSMAC-WindowsI32
6.3.6.000-TIV-TSMAC-WindowsX64
6.3.6.000-TIV-TSMRPT-WindowsX64
6.3.6.000-TIV-TSMRPT-WindowsI32
6.3.6.000-TIV-TSMRPT-Linuxx86_64
6.3.6.000-TIV-TSMRPT-Linuxx86
6.3.6.000-TIV-TSMRPT-AGENT-Windows
6.3.6.000-TIV-TSMRPT-AIX
6.3.6.000-TIV-TSMRPT-AGENT-AIX
6.3.6.000-TIV-TSMRPT-AGENT-Linux
IBM Spectrum Protect Server V7.1 Fix Pack 5 (7.1.5.000) Downloads
IBM Tivoli Storage Manager V6.3 Fix Pack 6 (6.3.6.000) Server Downloads

APAR status

• Closed as program error.

Error description

• When a tape drive experiences an errno 50 ENOCONNECT failure,
  an AIX Tivoli Storage Manager server will immediately fail the
  client backup session using that drive.  An example of the
  error received is as follows:
  
  11/22/15 06:59:24 ANR8311E An I/O error occurred while
                    accessing drive IBMDRV0 (/dev/rmt0) for
                    WRITE operation, errno = 50, rc = 2863.
  
  On non-AIX platforms, the Tivoli Storage Manager server will
  enter error recovery for a similar error and attempt to find
  a working drive for the backup session. The Server will
  continue to loop through this retry logic up until the
  RESOURCETIMEOUT value specified on the Server.
  
  The AIX platform should use the same retry logic as other
  platforms and not immediately fail the backup when ENOCONNECT
  is received for a particular drive.
  
  Customer/L2 Diagnostics:
  None.
  
  Initial Impact:
  Medium
  
  Tivoli Storage Manager Versions Affected:
  All supported Tivoli Storage Manager servers on AIX.
  
  Additional Keywords:
  TSM ANR8311E ERRNO 50 ENOCONNECT DRIVE WRITE FAILURE RETRY
  ERROR FAIL FAILS SCHED SCHEDULED SPECTRUM PROTECT CLIENT BACKUP
  

Local fix

• Restart the client backup after resolving any tape device
  errors.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * All Tivoli Storage Manager server users.                     *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * See error description.                                       *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Apply fixing level when available. This problem is projected *
  * to be fixed in levels 6.3.6 and 7.1.5.                       *
  * Note that this is subject to change at the discretion of     *
  * IBM.                                                         *
  ****************************************************************
  

Problem conclusion

• This problem was fixed.
  Affected platforms: AIX.
  

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