PK23984: INVALID RBA IS SET DURING BACKOUT ESDS FILE BY XFCLDEL

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• During forward recovery for ESDS file by CICSVR, MSGDWW0621
  appear becasue of invalid RBA. DFHFCVS set invalid RBA to
  VSWAARG during backout processing using XFCLDEL. When a record
  was tried to add at the last portion of CIn, VSAM had to insert
  the record in the next CI (CIn +1) because of no space in CIn.
  CICS rememberd the old RBA in CIn, and eventually set that RBA
  in VSWAARG on WRITE-UPDATE call to VSAM. VSAM just moved the RBA
  to RPLDDDD (VSWALRBA) and CICS logged the update with this old
  RBA value. This led the DWW0621 failure at later fwd recovery.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All.                                         *
  ****************************************************************
  * PROBLEM DESCRIPTION: An invalid RBA value may be written to  *
  *                      the forward recovery file. This may     *
  *                      cause a problem when recovering a file  *
  *                      using a utility such as CICS/VR.        *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  A write to an ESDS logs the expected RBA for the record
  being added. This RBA value may be incorrect if the record
  cannot fit in the current CI and is placed at the start of
  a new CI. The 'write add complete' record written to the forward
  recovery journal will contain the correct RBA value. If the
  task abends, backout will be invoked. This will read the log and
  attempt to read the file using the logged RBA value. This
  will fail, but the RBA is recalcalated to the next CI and
  the record reread. Exit XFCLDEL is invoked to logically
  delete the record, and then it is rewritten to the file. However
  the write update record written to the forward recovery journal
  contains the original logged RBA value rather than the actual
  RBA value. This may cause an error when forward recovering
  the file using a utility such as CICS/VR.
  Additional Keywords
  VSWAXKEY FIDFCWU
  

Problem conclusion

• DFHFCVS has been modified to ensure the correct RBA value is
  used when writing to the forward recovery journal during backout
  processing.
  

Temporary fix

•             *********
              * HIPER *
              *********
  FIX AVAILABLE BY PTF ONLY
  

Comments

APAR Information

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

  PK23573

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

  UK14252

Modules/Macros

•    DFHFCVS  DFHFCVS1
  

Fix information

• Fixed component name

  CICSTS 3.1 Z/OS

• Fixed component ID

  5655M1500

Applicable component levels

• R400 PSY UK14252

     UP06/05/12 P F605

Fix is available

• Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.