PH34677: DRF ICR JOB LOOPS ON CREATING AN INCREMENTAL IMAGE COPY

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• DRF goes into a loop while creating an Incremental Image Copy.
  This issue may occur if there are CA and Log to apply on the DB
  record after the last IC record.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All IMS Recovery Solution Pack for z/OS      *
  *                 Version 2 Release 1 ( FMID=HAHM210 )         *
  *                 IMS Database Recovery Facility users.        *
  ****************************************************************
  * PROBLEM DESCRIPTION: DRF goes into a loop while creating     *
  *                      an Incremental Image Copy.              *
  *                      This issue may occur if there are CA    *
  *                      and Log to apply on the DB record after *
  *                      the last IC record.                     *
  ****************************************************************
  * RECOMMENDATION: INSTALL CORRECTIVE SERVICE FOR APAR/PTF      *
  ****************************************************************
  When running DRF with the OUTPUT (ICR) option, DRF goes into
  a loop while creating an Incremental Image Copy.
  This issue can occur if there are CA and log with the following
  conditions that apply to the DB record after the last IC record:
  - A single CA Spill record (5340) is followed by a CA Detail
    (5320) record and a CA Spill (5340) record with the same RBN
    (RBA).
  - There is a log record with an RBN greater than this same RBN.
  The cause of the problem is that there is a bug in processing
  the CA Spill record of DRF, and two DB records with the same
  RBN are generated from the CA records with the same RBN.
  This issue can also occur if the OUTPUT option is other than
  ICR (PRO, DUP, etc.).
  
  And, this APAR also addresses the following two problems:
  - If the last CA record is a CA Spill record, the last log
    entry in that record will be ignored.
  - Bitmap flag in the DB record for bitmap is not restored
    correctly from CA.
  

Problem conclusion

• DRF is changed so that it can handle CA Spill records correctly.
  Also, DRF is changed so that it sets the bitmap flag in the DB
  record for bitmap recovered from CA record.
  

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:

  UI75140

Modules/Macros

• FRXADF00 FRXADM10 FRXIOCN0 FRXIOSM0 FRXIVCN0 FRXIVSM0
  

Fix information

• Fixed component name

  IMS RCVR SOLUTN

• Fixed component ID

  5655V8600

Applicable component levels

• R210 PSY UI75140

     UP21/04/30 P F104

Fix is available

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