OA57408: APAR OA54814 SHIPPED SYSTEM LOGGER'S USE OF ZHYPERWRITE AS ACTIVE BY DEFAULT. IT WILL BE CHANGED TO INACTIVE BY DEFAULT.

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• The purpose of this APAR is to change the current default
  enablement of Logger Hyperwrite from YES to NO.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * All z/OS 2.2 and above System Logger                         *
  * environments with APAR OA54814 applied.                      *
  *                                                              *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * System Logger's use of zHyperWrite is                        *
  * active by Default ( ALLOWUSE(YES) )                          *
  *                                                              *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * See BYPASS/CIRCUMVENTION.                                    *
  *                                                              *
  ****************************************************************
  
  APAR OA54814 shipped System Logger's use of zHyperWrite as
  active by Default ( ALLOWUSE(YES) ).
  

Problem conclusion

• The System Logger Default use of Hyperwrite has been changed
  from ALLOWUSE(YES) to ALLOWUSE(NO).
  
    z/OS MVS Initialization and Tuning Reference
    --------------------------------------------
  
    :
    IXGCNFxx member
     :
     Specifying the IXGCNFxx members
      :
      Syntax format of IXGCNFxx
        :
        MANAGE
          :
          HYPERWRITE
            ALLOWUSE(YES | NO)
   |                       --
          :
     :
     Statements and parameters for IXGCNFxx
       :
       MANAGE
        Provides the resource management policy for system logger.
       :
       HYPERWRITE
        Specifies the system logger policy on the system for IBM
        zHyperWrite data replication use for log stream data sets.
  
        ALLOWUSE(YES | NO)
   |                   --
        YES
         Indicates that use of IBM zHyperWrite data replication
         is allowed as system logger writes to certain log stream
         data sets on the particular system as follows:
          - staging data sets for DASDONLY type log streams,
          - offload data sets for both the DASDONLY type and
         Coupling Facility structure-based type log streams.
        :
        :
        NO
         Indicates that use of IBM zHyperWrite data replication is
         not allowed for any system logger log stream data sets on
         the particular system with this specification.
  
   |    Default:  NO
  
     z/OS MVS System Messages
    -------------------------
  
     The (IXG607I) formatted portion of IXG601I message issued
     in response to DISPLAY LOGGER,IXGCNF,MANAGE  command now
     includes MANAGE HYPERWRITE ALLOWUSE specification.
     :
     LOGGER              PARAMETER OPTIONS
        KEYWORD           SOURCE    VALUE
     -----------------   -------------------
       MANAGE
        OFFLOAD
         ALLOCAHEAD       DEFAULT    YES
         USEOFFLOADMIN    DEFAULT    YES
        STAGING
         USESTAGINGMIN    DEFAULT    YES
        HYPERWRITE
   |     ALLOWUSE         DEFAULT    NO
        LOGRCDS
         ALLOWACCESS      DEFAULT    YES
    :
  

Temporary fix

Comments

• ×**** PE19/09/10 FIX IN ERROR. SEE APAR OA58287  FOR DESCRIPTION
  ×**** PE22/01/06 FIX IN ERROR. SEE APAR OA62658  FOR DESCRIPTION
  

APAR Information

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

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

  UJ00118 UJ00132 UJ00133

Modules/Macros

• IXGE3CNF IXGCNFXX
  

Fix information

• Fixed component name

  SYSTEM LOGGER

• Fixed component ID

  5752SCLOG

Applicable component levels

• R7A0 PSY UJ00133

     UP19/08/07 P F908 {

• R7B0 PSY UJ00118

     UP19/08/07 P F908 {

• R7C0 PSY UJ00132

     UP19/08/07 P F908 {

Fix is available

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