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OA51227: FREEZE AND RUN NOT ISSUED AFTER *IEA494I

A fix is available

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APAR status

  • Closed as unreproducible.

Error description

  • A Basic HyperSwap session may incorrectly ignore freeze triggers
    for *IEA494I PPRC SUSPENDED messages.
    
    It is expected that Basic HyperSwap would count IEA494I as a
    freeze trigger, which should react per the HyperSwap policy
    defined in TPC-R or CSM.  This should issue a FREEZE ALL if
    stated in the policy, and then should either RUN or STOP.
    
    Note: This problem only affects message *IEA494I with text
    indicating "PPRC SUSPENDING", "PPRC SUSPENDED" or "PPRC
    TERMINATED".  Under normal circumstances, message IEA494I should
    be issued without the leading action character (*).  It is
    possible for message automation or some other processing to
    change the routing or descriptor code to cause the leading
    action character to be used.
    
    KNOWN IMPACT:
    z/OS HyperSwap may not take action after a PPRC suspension
    event, causing HyperSwap to remain enabled.
    
    VERIFICATION STEPS:
    - Verify from SYSLOG that all occurrences of IEA494I were issued
      with an action character/asterisk (*)
       *IEA494I dddd,TEST,PPRC PAIR SUSPENDED
    - Verify that HyperSwap was enabled, and verify that HyperSwap
    managed devices received the IEA494I messages
    - Verify that no "Run" or "Freeze and Run" processing occurred.
      There will NOT be the following message:
       IOSHM0308I PPRC suspension detected for replication session
       TESTHSWP_H1H2
              FreezeAll and Run completed. Reason: 0000
    

Local fix

  • BYPASS/CIRCUMVENTION:
    Do not use message automation to change the routing or
    descriptor codes for IEA494I
    
    RECOVERY ACTION:
    Purge and Reload the HyperSwap configuration, using STOP H1->H2
    followed by START H1->H2
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED: Users at HBB7790 and above that use z/OS     *
    *                 HyperSwap.                                   *
    ****************************************************************
    * PROBLEM DESCRIPTION: z/OS HyperSwap may not trigger a freeze *
    *                      when MSGIEA494I is converted to an      *
    *                      action message (*IEA494I).              *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    When MSGIEA494I is issued in response to a PPRC suspension
    event, and it has been converted to an action message,
    the z/OS HyperSwap message parser may not recognize the
    action indicator as part of the message id (*IEA494I).
    

Problem conclusion

Temporary fix

Comments

  • z/OS HyperSwap message parser has been updated to recognize
    MSGIEA494I as action message when converted (*IEA494I).
     KEYWORDS: HYPERSWP/K
    

APAR Information

  • APAR number

    OA51227

  • Reported component name

    IOS

  • Reported component ID

    5752SC1C3

  • Reported release

    790

  • Status

    CLOSED UR3

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2016-09-12

  • Closed date

    2016-10-14

  • Last modified date

    2016-11-02

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

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

    UA83009 UA83010

Modules/Macros

  • IOSHMSSM
    

Fix information

  • Fixed component name

    IOS

  • Fixed component ID

    5752SC1C3

Applicable component levels

  • R7A0 PSY UA83009

       UP16/10/26 P F610

  • R790 PSY UA83010

       UP16/10/26 P F610

Fix is available

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Document Information

Modified date:
02 November 2016