PM55003: FABA4035E AND FABA4057I MESSAGES ARE SHOWN UNDER DRF HASH FUNCTION INCORRECTLY

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• MSGFABA4035E and MSGFABA4057I are incorrectly shown under
  the DRF Hash function. This APAR is an FPSP V1R2 forward fit
  APAR for FPSP V1R1 APAR PM54954.
  

Local fix

• N/A
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users who uses HPFPU Hash Check support  *
  *                 for IMS Database Recovery Facility           *
  *                 in Fast Path Solution Pack Version 1         *
  *                 Release 2 (FMID: HAHQ120).                   *
  ****************************************************************
  * PROBLEM DESCRIPTION: Forward Fit APAR of FPSP V1R1 FPB       *
  *                      PM54954.                                *
  *                      1. FABA4035E and FABA4031E messages     *
  *                      are shown incorrectly when a CI is      *
  *                      full with SDEP segments.                *
  *                      2. FABA4031E messages are shown         *
  *                      incorrectly when the valid SDEP         *
  *                      segments exist after a SDEP control     *
  *                      segment(PREFIX:X'02C0') in a CI.        *
  *                      3. DRF HASH Check cannot detect the     *
  *                      incorrect block id in CI (DBLKBTID).    *
  ****************************************************************
  * RECOMMENDATION: Apply the maintenance for this APAR.         *
  ****************************************************************
  Forward Fit APAR of FPSP V1R1 FPB PM54954.
  1. The MAX usable CI offset, which is internally used in DRF
  HASH check, is shorter 2 bytes than the correct value.
  The FSE of the CI that points to the correct MAX usable CI
  offset is beyond the HASH check MAX usable CI offset, so that
  the error messages are shown.
  2. DRF HASH check bypasses SDEP segments remaining in the CI
  when it finds a SDEP control segment(PREFIX:X'02C0').
  3. DRF HASH Check cannot detect the incorrect block id
  in CI (DBLKBTID).
  

Problem conclusion

• 1. DRF HASH Check has been modified to detect MAX usable CI
  offset is corrected.
  2. DRF HASH Check has been modified to skip only the SDEP
  control segment when it finds one.
  3. DRF HASH Check have been modified to detect correctly
  the incorrect block id in CI (DBLKBTID).
  
  In addition, the comment lines in FABAHEXT have been modified.
  

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:

  UK75235

Modules/Macros

• FABAHEXT FABAHSCA
  

Fix information

• Fixed component name

  IMS FP SOLUTION

• Fixed component ID

  5655W1400

Applicable component levels

• R120 PSY UK75235

     UP12/01/21 P F201

Fix is available

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