OA50053: HYPERSWAP STATUS IN DISPLAY HS,STATUS COMMAND OUTPUT IS INCONSISTENT WITH MSGIOSHM0803E AND MSGIOSHM0805I

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Customer was attempting to test a failure of connectivity to the
  secondary PPRC volumes.  The expected behavior was HSIB should
  recognize the loss from one system and maintain hyperswap
  enablement with message:
  IOSHM0803E HyperSwap enabled with limited capability .
  -
  The expected wto was issued, however the display
  commands did not reflect any indication of limited
  enablement.
  -
  D HS,CONFIG  command did show Indicate 1 SYSTEMS IMPACTED.
  -
  The customer is looking for a better set of display commands
  to properly reflect this condition where HSIB is LIMITED by
  one or more systems and which system(s) are limited?
  -
  The message:
  IOSHM0806I Unable to verify PPRC secondary device connectivity
  was periodically displayed on the system which lost the
  connectivity.
  

Local fix

• Look for message IOSHM0806I on one or more systems to find
  which system lost connectivity.
  D HS,CONFIG(DETAIL)
  will show the detail on each of the individual systems as to
  where the connectivity is lost.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: Users at HBB7780 and above that use Basic    *
  *                 HyperSwap function.                          *
  ****************************************************************
  * PROBLEM DESCRIPTION: HyperSwap status in DISPLAY message     *
  *                      MSGIOSHM0303I does not always indicate  *
  *                      the correct enablement status and may   *
  *                      not be consistent with MSGIOSHM0803E    *
  *                      and MSGIOSHM0805I messages              *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  HyperSwap status in DISPLAY HS,STATUS command response
  (MSGIOSHM0303I) does not always indicate the correct enablement
  status and may not be consistent with IOSHM0803E and IOSHM0805I
  messages.
  
  -MSGIOSHM0303I indicates HyperSwap is enabled when the loss of
   connectivity to the secondary devices in the configurations
   causes HyperSwap to have limited enablement
  
  -In a multi-target HyperSwap configuration when connectivity
   is lost to secondary devices in a configuration, however, there
   remains one configuration with connectivity from all systems,
   MSGIOSHM0303I indicates HyperSwap is enabled but message
   MSGIOSHM0803E is issued indicating limited availability.
  
  -The disablement reasons in the MSGIOSHM0303I response to the
   DISPLAY HS,STATUS command are not always shown correctly
   when a system has lost connectivity to the secondary devices
   or when one or more HyperSwap configurations are loaded,
   however no configuration is capable of HyperSwap.
  

Problem conclusion

• Correct the reporting of the HyperSwap enablement status as
  follows:
  
  -Ensure that the HyperSwap status indicated by MSGIOSHM0303I
   indicates limited enablement when one or more systems has lost
   connectivity to the secondary devices of the configuration to
   be used for HyperSwap.
  
  -In a multi-target HyperSwap configuration when connectivity
   is lost to secondary devices in a configuration, however,
   there remains one configuration with connectivity from all
   systems and capable of HyperSwap, ensure that MSGIOSHM0803E
   is not issued.
  
  -Update MSGIOSHM0303I response to the DISPLAY HS,STATUS to
   provide the appropriate disablement reason when a system has
   lost connectivity to the secondary devices or when one or more
   HyperSwap configurations are loaded, however no configuration
   is capable of HyperSwap.
  
   KEYWORDS: HYPERSWP/K
  

Temporary fix

Comments

APAR Information

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

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

  UA81886 UA81887 UA81888

Modules/Macros

• IOSHMDSP IOSHMEDS
  

Fix information

• Fixed component name

  IOS

• Fixed component ID

  5752SC1C3

Applicable component levels

• R7A0 PSY UA81886

     UP16/06/15 P F606

• R780 PSY UA81887

     UP16/06/15 P F606

• R790 PSY UA81888

     UP16/06/15 P F606

Fix is available

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