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IC57753: ANR8779E WITH ERROR NUMBER=16 WHEN SAN DISCOVERY FAILS OR IS DISABLED.

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APAR status

  • Closed as program error.

Error description

  • Customers' may run into an issue when TSM discovers a serial
    number mismatch on a drive it attempts to open.  This will
    happen when the drive we successfully opened reports a different
    serial number than what is stored in the TSM database,
    indicating that the wrong drive was opened.  When the serial
    mismatch occurs, TSM attempts to resolve the mismatch with SAN
    discovery.  However, if SAN Discovery fails or is disabled, then
    not only will TSM fail to open the intended drive, it will
    additionally neglect to close the wrong drive it had just opened
    while handling the SAN discovery failure or its disablement.
    Thus, there will be a SCSI reservation left on a drive that will
    not be released unless TSM or that drive is recycled.
    .
    If the above situation occurs, then the error number=16 will be
    seen on subsequent attempts to open the drive with a stale
    reservation leftover from this described behavior.  Thus, the
    server reporting the error number=16 generally did not cause the
    problem, but was only affected by the aftermath of this
    situation.  In many cases the TSM server or storage agent that
    left the stale reservation will throw an ANR8963E error message.
    .
    Customer/L2 Diagnostics (if applicable)
    Messages seen:
    ANR8779E Unable to open drive drive_name, error number=16
     ANR8963E Unable to find path to match the serial number defined
    for drive drive name  in library library nam
     .
    Tracing MMS NA PVRVOL PVRMP may show trace points similar to the
    following:
    .
    11:08:10.377 [16][pvr.c][5399]: (PvrOpenTapeDrive) Drive
    OXMF08R04 devtype 25 open rc 94 with handle 46 nonDelayFlag 0
    will call PvrOpenDevice again with nodelay
    11:08:10.394 [16][pspvr.c][2775]: device /dev/rmt12 is opened
    with handle 10 pass handel 10 back
    11:08:10.394 [16][pvr.c][5406]: (PvrOpenTapeDrive) Drive
    OXMF08R04 devtype 25 open rc 0 with handle 10 and nonDelayFlag
    is TRUE.
    11:08:10.394 [16][mmsdrive.c][7922]: MmsCheckTapeId: Checking
    drive OXMF08R04 information with openRc 0
    ...
    11:13:26.127 [16][pspvr.c][2678]: PvrDiscoverPath: rc = 34
    result = 268
    11:13:26.128 [16][mmsdrive.c][8478]: (MmsCheckTapeId)
    PvrDiscoverPath did not find a path to match desc serial
    [000007859353] for drive OXMF08R04
    11:13:26.128 [16][output.c][6361]: ANR8963E Unable to find path
    to match the serial number defined for drive OXMF08R04 in
    library IBM3584OXM3592-01 .~
    ...
    11:13:26.152 [16][pvr.c][5414]: (PvrOpenTapeDrive) Drive
    OXMF08R04 handle 10 checktapeId  rc is 30
    11:13:31.174 [16][pspvr.c][2740]: open() with errno is 11
    devName is /dev/rmt12
    .
    *NOTE*
    An ANR8779E with error number=11 (EAGAIN) may be also be seen on
    the culprit server or storage agent.
    .
    The fix needs to be applied to TSM servers (Library Managers and
    Library Clients), and Storage Agents
    .
    Platforms affected:
    TSM 5.3, 5.4, 5.5 (AIX, Solaris, HP, Linux, Windows)
     .
    Initial Impact: High
    .
    Additional Keywords: ANR8779E ANR8963E SanDiscovery drive
    errno=16 error number=16 errno=11 error number=11
    

Local fix

  • Recycle drive
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All TSM servers and storage agents using     *
    *                 tape drives.                                 *
    ****************************************************************
    * PROBLEM DESCRIPTION: See ERROR DESCRIPTION.                  *
    ****************************************************************
    * RECOMMENDATION: Apply fixing level when available.  This     *
    *                 problem is currently projected to be fixed   *
    *                 in levels 5.4.4.1, 5.4.5, 5.5.1.1 and 5.5.2. *
    *                                                              *
    *                 Note that this is subject to change at the   *
    *                 discretion of IBM.                           *
    ****************************************************************
    See ERROR DESCRIPTION.
    

Problem conclusion

  • The described problem has been resolved.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IC57753

  • Reported component name

    TSM SERVER

  • Reported component ID

    5698ISMSV

  • Reported release

    54A

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2008-08-27

  • Closed date

    2008-09-22

  • Last modified date

    2008-09-22

  • 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

  • R53A PSY

       UP

  • R53H PSY

       UP

  • R53L PSY

       UP

  • R53S PSY

       UP

  • R53W PSY

       UP

  • R53Z PSY

       UP

  • R54A PSY

       UP

  • R54H PSY

       UP

  • R54L PSY

       UP

  • R54S PSY

       UP

  • R54W PSY

       UP

  • R54Z PSY

       UP

  • R55A PSY

       UP

  • R55H PSY

       UP

  • R55L PSY

       UP

  • R55S PSY

       UP

  • R55W PSY

       UP

  • R55Z PSY

       UP

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Document Information

Modified date:
22 September 2008