OA66660: ZDMF IS CORRUPTING VSAM FILES DURING DIVERT PROCESSING. IDCAMS EXAMINE INDICATES MISMATCH BETWEEN HI-USED RBA 6240 AND HI-ALLOC

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• ZDMF is corrupting VSAM files during Divert Processing. IDCAMS
  examine indicates mismatch between HI-USED RBA 6240 and HI-ALLOC
   RBA/CI 5400.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All ZDMF 3.4.1 customers using Logical Copy  *
  *                 option.                                      *
  ****************************************************************
  * PROBLEM DESCRIPTION: ZDMF is corrupting VSAM files during    *
  *                      Divert Processing. IDCAMS examine       *
  *                      indicates mismatch between HI-USED RBA  *
  *                      6240 and HI-ALLOC  RBA/CI 5400.         *
  *                                                              *
  *                       EXAMINE NAME(TEST.KSDS) ITEST DTEST    *
  *                      IDC01700I INDEXTEST BEGINS              *
  *                      IDC11709I DATA HIGH-USED RBA IS GREATER *
  *                                THAN HIGH-ALLOCATED RBA       *
  *                      IDC01702I HIGH-USED RBA/CI IS 11190     *
  *                      IDC01703I HIGH-ALLOCATED RBA/CI IS 2700 *
  *                      IDC21701I MAJOR ERRORS FOUND BY         *
  *                                INDEXTEST                     *
  *                      IDC31705I DATATEST NOT PERFORMED DUE TO *
  *                                SEVERE INDEXTEST ERRORS       *
  *                      IDC3003I FUNCTION TERMINATED.           *
  *                               CONDITION CODE IS 12           *
  *                                                              *
  *                      IDC0002I IDCAMS PROCESSING COMPLETE.    *
  *                               MAXIMUM CONDITION CODE WAS 12  *
  ****************************************************************
  Source data set is a KSDS with multiple extents on one volume.
  In addition there are at least four candidate volumes defined
  (not guaranteed space).
  
  ZDMF group is defined to use Logical Copy.
  
  During copy process the target data takes a new extent onto a
  second volume.
  
  At the end of the copy process the source data set consists of a
  data component with extents on a single volume but with
  candidate volumes. The target copy consists of a data component
  with data extents on two or more volumes and with a balance of
  candidate volumes. However, the second and any subsequent
  primary volumes do not show up in a LISTCAT of the target data
  set (renamed to the source name after the copy completes). The
  other extents of the data component can be found by using ISPF
  3.4 for the component name on other volumes in the storage
  group.
  
  The physical copy process completes correctly.
  
  The error occurs during the catalog rename process when the VVDS
  volumes records get copied in GZDRMAN. GZDRMAN attempts to
  reconcile the data component candidate volume entries between
  the source and target. In this situation the second volume of
  the source data component is identified as a candidate volume,
  whereas the second volume of the target data set is identified
  as a primary volume. In Classic ZDMF, this mismatch on extents
  does not happen and the code here swaps the volume entries to
  preserve the source definition in the renamed target. This has
  the effect of dropping a data extent from the target data set.
  

Problem conclusion

• GZDRMAN is modified to skip candidate volume reconciliation
  during rename for data sets process by Logical Copy.
  

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:

  UJ95689

Modules/Macros

• GZDRMAN
  

Fix information

• Fixed component name

  ZDMF

• Fixed component ID

  ZDMF00001

Applicable component levels

• R341 PSY UJ95689

     UP24/07/27 P F407 ¢

Fix is available

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