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IV53656: RECOVER CLUSTER FROM CACHE FILE. APPLIES TO AIX 7100-03

A fix is available

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • This APAR is applicable for AIX/PowerHA environments where CAA
    (Cluster Aware AIX) clustering is used.
    .
    CAA uses a shared disk across all the nodes in the cluster
    called repository disk. This disk is used for maintaining
    cluster related configuration information. Disk is also used
    for health management through heart beating etc.
    .
    Note that PowerHA and CAA cluster survives loss of repository
    disk. Administrator can recreate the repository disk in such a
    scenario by using the PowerHA SMIT (providing a new disk to be
    used as repository disk)
    .
    This APAR describes an error scenario where loss of repository
    disk occurs and then all the nodes in the cluster also reboot.
    This would result in no configuration information available for
    the nodes to activate the cluster. CAA requires cluster
    configuration on the repository disk to bring up the cluster
    services during boot.
    .
    Note that in PowerHA environment, it is required that the
    repository related changes be performed through PowerHA (either
    using clmgr or SMIT menus. For more information refer to
    PowerHA APAR: IV50788)
    

Local fix

Problem summary

  • See above.
    

Problem conclusion

  • CAA maintains a local copy cache of the repository in rootvg.
    With this fix CAA has been updated to be able to restore the
    repository disk using this cache file. This CAA/AIX change is
    being exploited by PowerHA to support repository recovery in
    the case of loss of repository disk and the cluster outage.
    Refer to the PowerHA APAR for details in regards to the use of
    PowerHA clmgr command or SMIT menus to recover the repository
    disk
    

Temporary fix

Comments

  • 6100-08 - use AIX APAR IV57847
    6100-09 - use AIX APAR IV53637
    6100-09 - use AIX APAR IV53637
    6100-09 - use AIX APAR IV53637
    7100-02 - use AIX APAR IV56563
    7100-03 - use AIX APAR IV53656
    

APAR Information

  • APAR number

    IV53656

  • Reported component name

    AIX V7.1

  • Reported component ID

    5765H4000

  • Reported release

    710

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Submitted date

    2014-01-02

  • Closed date

    2014-01-02

  • Last modified date

    2014-08-14

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

    IV53637

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

Fix information

  • Fixed component name

    AIX V7.1

  • Fixed component ID

    5765H4000

Applicable component levels

  • R710 PSY U859720

       UP14/05/22 I 1000

PTF to Fileset Mapping



Document information

More support for: AIX Enterprise Edition

Software version: 710

Operating system(s): AIX

Reference #: IV53656

Modified date: 14 August 2014