PI36447: NEW FUNCTION - DETECT MULTI-TARGET PPRC USE OUTSIDE GDPS/MTMM

Obtain the fix for this APAR.

APAR status

• Closed as new function.

Error description

• NEW FUNCTION
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: GDPS/PPRC, GDPS/PPRC HM, GDPS/XRC            *
  ****************************************************************
  * PROBLEM DESCRIPTION: GDPS monitoring has been enhanced to:   *
  *                                                              *
  *                      1. Check for the presence of multiple   *
  *                      PPRC relationships on all GDPS managed  *
  *                      primary devices.                        *
  *                                                              *
  *                      2. Check the MTPPRC option has not been *
  *                      enabled via the DEVSUPnn parmlib member *
  *                                                              *
  *                      If either condition is detected then    *
  *                      mirroring status will be set NOK,       *
  *                      HyperSwap will be disabled, and an SDF  *
  *                      alert will be generated.                *
  *                                                              *
  *                      GDPS initialization has been enhanced   *
  *                      to include additional coexistence       *
  *                      checking and MTPPRC enablement.         *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  

Problem conclusion

Temporary fix

Comments

• KEYWORDS
  GDPSPPRC/K GDPSPPRCHM/K GDPSXRC/K
  
  This PTF adds function to protect a GDPS/PPRC or GDPS/PPRC
  HyperSwap Manager system from inadvertent use of Multi-Target
  PPRC function. Only a GDPS/MTMM system is capable of manag-ing
  Multi-Target PPRC. In other GDPS environments, the presence of
  multiple relations on primary devices, or enablement of the
  MTPPRC option in DEVSUPnn, will have unpredictable results.
  
  This PTF adds a coexistence check in GDPS/PPRC, GDPS/PPRC
  Hyperswap Manager and GDPS/XRC system which verifies that only
  1 GDPS flavour is active within the Sysplex and that all GDPS
  instances are operating at n and n-1 levels.
  
  
  DOCUMENTATION CHANGES
  
  The following update will be reflected in a future revision of
  the GDPS/PPRC Messages and Codes (ZG24-1756)
  
  GEO220E DEVSUP PPRCMT IS ENABLED
  
  Explanation: DEVSUP PPRCMT is ENABLED. The ENABLE and
               DISABLE is specified in PARMLIB member DEVSUPnn
               The PPRCMT is only to be ENABLED in a GDPS/MTMM
               environment, that is the only Multi Target
               capable GDPS Solution.
               Hyperswap will be DISABLED and all UCBs
               unprepared, the mirroring status will be set
               NOK and an error flag will be set preventing
               Hyperswap from being re-enabled. This message
               is written to SDF. It is automatically deleted
               when PPRCMT is disabled
  
  Action:      DISABLE PPRCMT with MVS command SET DEVSUP=nn
               where nn is the trailing characters for member
               DEVSUPnn in PARMLIB containing DISABLE(PPRCMT)
               Run a Monitor2 on a controlling system.
               This will reset the error flag and allow
               HyperSwap capability to be restored.
  
  Destination: Syslog, SDF alert - red
  
  Source: GDPS/PPRC, GDPS/HM
  
  
  GEO221E <count> PRIMARY DEVICE(S) WITH MULTIPLE RELATION-SHIPS
          DETECTED
  
  Explanation: GDPS monitoring has detected that at least one
               PPRC primary device has multiple relationships
               established. This type of configuration is only
               supported in a GDPS/MTMM environment.
               Hyperswap will be DISABLED and all UCBs
               unprepared, the mirroring status will be set NOK
               and an error flag will be set preventing
               Hyperswap from being re-enabled.
  
  Action:      Delete the unsupported PPRC relationships and run
               Monitor-2. This will reset the error flag and
               allow HyperSwap capability to be restored.
  
  Destination: Syslog, SDF alert - red
  
  Source: GDPS/PPRC, GDPS/HM
  &#158;**** PE15/08/17 PTF IN ERROR. SEE APAR PI45563  FOR DESCRIPTION
  

APAR Information

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

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

  UI29008 UI29009 UI29012 UI29010 UI29011 UI29013 UI29014 UI29015
  UI29016

Modules/Macros

• DSIGEO22 GEOMSGGP GEO22    HYPERSW  VPCEACTA
  VPCEDASD VPCEINIT VPCEIPCM VPCEIPCO VPCEMON3 VPCEMSGA VPCEMSGH
  VPCEMTCH VPCEMTM3
  

Fix information

• Fixed component name

  GDPS-GEO DISP P

• Fixed component ID

  694235B00

Applicable component levels

• R3AA PSY UI29011

     UP15/07/03 P F507

• R3AH PSY UI29012

     UP15/07/03 P F507

• R3A0 PSY UI29008

     UP15/07/03 P F507

• R3BA PSY UI29013

     UP15/07/03 P F507

• R3BH PSY UI29014

     UP15/07/03 P F507

• R3B0 PSY UI29009

     UP15/07/03 P F507

• R3CA PSY UI29015

     UP15/07/03 P F507

• R3CH PSY UI29016

     UP15/07/03 P F507

• R3C0 PSY UI29010

     UP15/07/03 P F507

Fix is available

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