OA62259: Catalog incorrectly in EOV status causing sharing discrepencies

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• In rare situations during end of volume extend processing for a
  catalog, a bit was left on in Catalog Address Space that
  prevented the update to sharing structures in a particular
  catalog's VVR.   When this occurred, several cache
  inconsistencies occured across systems.   Such inconsistencies
  can included
  
  246-20
  data sets cataloged on one system, but not another
  differences in volumes a data set resides on between systems
  48-20 SHARING SUBCELL BK-LVL
  
  This apar will provide additional diagnostic information
  
  
  CATKEYS: CAT2021 CATCACHE CATDB2 CATECS CATGDG DSBREAKER
  CATBREAKER
  

Local fix

• BYPASS/CIRCUMVENTION:
  Upon first notice of synchronization issues,  close catalog via
  F CATALOG,UNALLOCATE(catname) on all systems.  Catalog will be
  reopen/refreshed upon next update   F CATALOG,NOVLF(catname) and
  F CATALOG,NOISC(catname) will prevent future use of the cache
  though performance may degrade.
  
  RECOVERY ACTION:
  It is possible datasets may have lasting affects such as cases
  where an extend took place on multiple systems.   Recovery of
  those data sets may be necessary.  Check catalog for corruption
  via EXAMINE and DIAGNOSE
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * All Catalog users of HDZ2240 and above when extending a user *
  * catalog.                                                     *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * In rare situations during end of volume extend processing    *
  * for a                                                        *
  * catalog, a bit was left on in Catalog Address Space that     *
  * prevented the update to sharing structures in a particular   *
  * catalog's VVR.   When this occurred, several cache           *
  * inconsistencies occured across systems.   Such               *
  * inconsistencies                                              *
  * can include                                                  *
  *                                                              *
  * 246-20                                                       *
  * data sets cataloged on one system, but not another           *
  * differences in volumes a data set resides on between systems *
  *                                                              *
  * This apar will provide additional diagnostic information and *
  * reset the bit.                                               *
  *                                                              *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  see error description.
  

Problem conclusion

• Catalog code was modified to reset the erroneous bit and add
  additional catalog diagnostic trace logs with dump of 246-42
  when catalog defected error condition.
  

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:

  UJ07137 UJ07138

Modules/Macros

• IGG0CLF5 IGG0CLEU IGG0CLEG IGG0CLA9
  

Fix information

• Fixed component name

  ICF CATALOG & I

• Fixed component ID

  5695DF105

Applicable component levels

• R240 PSY UJ07137

     UP21/12/15 P F112

• R250 PSY UJ07138

     UP21/12/15 P F112

Fix is available

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