PH39427: DFHFC5813 ISSUED AT CICS STARTUP INDICATING DFHSM OR DFDSS DOES NOT SUPPORT BACKUP WHILE OPEN BWO PROCESSING

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• DFHFC5813 issued at CICS startup indicating DFHSM or DFDSS is
  backlevel and does not support BWO processing.  DFHFCRP
  determines there is a CVTHSM ( QCT Control Block ) and to fill
  in FCSTATIC FC_HSM_RELEASE using the QCT at x'30' ( field
  MQCTVRM ).  This is zero since a vendor DFHSM is running
  the LPAR. This causes CICS to move 00000000 into FCSTATIC
  FC_HSM_RELEASE at offset x'48'.   This causes the issue later
  on. But, there is also another issue here.  The QCT+30 says:
  
  Version, release, and modification level of DFSMShsm levels
  1.5.0 and earlier. If this field equals X'40F1F5F9', field
  MQCT_VRM contains the correct version, release, and modification
  levels.
  
  A local to support system shows 40F1F5F9. DFHFCRP should be
  checking MQCT_VRM which is at offset x'6C' in the QCT.
  
  DFHFCRP then checks for backlevel HSM and moves in FC_HSM_REL
  which was set to 00000000 above and determines HSM is backlevel
  and sets FC_HSM_BACKLEVEL in FCSTATIC at x'770'.
  
  Then DFHFCAT is called and at tests to see if FC_HSM_BACKLEVEL
  or FC_DSS_BACKLEVEL is on and if so ( if the message hasn't
  already been out ) issues the DFHFC5813 message.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICS users.                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: DFHFC5813 issued in error.              *
  ****************************************************************
  The customer had a vendor version of DFHSM on their systems,
  that was capable of supporting fuzzy backup. However, CICS still
  issued the warning message DFHFC5813 when the file was opened,
  as DFHFCRP referenced a redundant MQCT field to test for this.
  In fact, msgdfhfc5813 is no longer required as it was
  introduced in 1991 when it was possible for an old level of
  DFHSM or DFDSS to be in use, that precluded dynamic backup
  support. That is no longer the case, as supported versions and
  vendor equivalents support it now.
  

Problem conclusion

• DFHFCAT has been changed to no longer issue the DFHFC5813
  message or FCAT_TRACE_HSMDSS_BACK_LVL 0B70 exception trace
  entry. The flags used to detect fuzzy backup support have been
  retained within FC static storage, for serviceability purposes.
  

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:

  UI78419 UI78420

Modules/Macros

• DFHFCAT
  

Fix information

• Fixed component name

  CICS TS Z/OS V5

• Fixed component ID

  5655Y0400

Applicable component levels

• R200 PSY UI78420

     UP21/12/08 P F112

• R300 PSY UI78419

     UP21/12/08 P F112

Fix is available

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