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

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You can track all active APARs for this component.

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 number

    IT12435

  • 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

    2015-11-25

  • Closed date

    2015-12-07

  • Last modified date

    2015-12-07

  • 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

  • R71A PSY

       UP



Document information

More support for: Tivoli Storage Manager

Software version: 7.1.3

Reference #: IT12435

Modified date: 07 December 2015