IBM Support

IC74795: MOUNT RESOURCE MONITOR TIMEOUT CAN CAUSE OTHER MOUNT MONITORS TO GET INCORRECT LVM INFORMATION

Subscribe

You can track all active APARs for this component.

APAR status

  • Closed as fixed if next.

Error description

  • If a mount monitor times out,  it can cause other mount monitors
    to get incorrect information from lsvg potentially causing an
    outage.
    The surviving mount monitor may get incorrect output from lsvg
    resulting in the monitor not recognizing a VG as being
    concurrent. The monitor will act as though the VG is
    non-concurrent, yet varied on, and may mount the file system it
    is monitoring. If this happens on a standby node while the mount
    resource is online on the primary, it can cause an outage as TSA
    brings resources offline on the primary node.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * Smart Analytic System 7600                                   *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * If a mount monitor times out,  it can cause other mount      *
    * monitors                                                     *
    * to get incorrect information from lsvg potentially causing   *
    * an                                                           *
    * outage.                                                      *
    *                                                              *
    * The surviving mount monitor may get incorrect output from    *
    * lsvg                                                         *
    * resulting in the monitor not recognizing a VG as being       *
    *                                                              *
    * concurrent. The monitor will act as though the VG is         *
    *                                                              *
    * non-concurrent, yet varied on, and may mount the file system *
    * it                                                           *
    * is monitoring. If this happens on a standby node while the   *
    * mount                                                        *
    * resource is online on the primary, it can cause an outage as *
    * TSA                                                          *
    * brings resources offline on the primary node.                *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Upgrade to DB2 V97 fp5                                       *
    ****************************************************************
    

Problem conclusion

Temporary fix

Comments

APAR Information

  • APAR number

    IC74795

  • Reported component name

    DB2 FOR LUW

  • Reported component ID

    DB2FORLUW

  • Reported release

    970

  • Status

    CLOSED FIN

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2011-03-02

  • Closed date

    2011-12-08

  • Last modified date

    2011-12-08

  • APAR is sysrouted FROM one or more of the following:

  • APAR is sysrouted TO one or more of the following:

Fix information

Applicable component levels

  • R970 PSY

       UP



Document information

More support for: DB2 for Linux, UNIX and Windows

Software version: 9.7

Reference #: IC74795

Modified date: 08 December 2011