PH22731: CICS EMERGENCY RESTART ALWAYS TRIES TO RECONNECT TO PREVIOUSLY CONNECTED DB2 FOR Z/OS MEMBER.

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• When CICS is SHUTDOWN IMMEDIATE, the next CICS restart type is
  EMERGENCY. 
   Then when CICS restart type is EMERGENCY and RESYNCMEMBER(YES)
  is specified, CICS requires to reconnect to the previously
  connected Db2 member. This is because Db2 itself may have
  INDOUBT UOWs it wishes to let CICS know about, during the
  connection and resync.
   The process occurs in this way whether or not there are
  indoubt UOWs.
   If the same DB2 member is not available the resync can not
  take place. 
                                                                 .
  This can cause an issue if restarting CICS on a different LPAR,
  and the original Db2 subsystem is not available to reconnect to.
                                                                 .
  DFHSI8440I CICSxxxx Initiating connection to DB2..
  DFHDB2037  CICSxxxx .. DB2 subsystem DBR1 is not active.  The
                        CICS-DB2 attachment facility is waiting..
  DFHSI8443  CICSxxxx Connection to DB2 not completed. Adapter is
                      awaiting initialization of DB2..
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICS Users.                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: An emergency restart of CICS always     *
  *                      attempts to connect to previously       *
  *                      connected Db2 subsystem.                *
  ****************************************************************
  In the customers case a CICS region was cancelled, it was
  connected to Db2 subsystem 'A' using group attach. It did not
  have any shunted UOWs.
  This CICS region was then restarted on a different LPAR
  but still required a connection to Db2 subsystem 'A'.
  
  Keywords:
  msgDFHSI8440I SI8440I msgDFHDB2037 DB2037 msgDFHSI8443 SI8443
  

Problem conclusion

• The CICS Db2 interface has been changed to catalog the MVS
  system name. On a CICS restart, if it is an emergency then if
  the MVS is not the same as the CICS was previously started on
  there is no need to connect to the same Db2.
  
  After APPLYing the PTF associated with this APAR a COLD or
  INITIAL start will be required to update the global catalog's
  Db2 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:

  UI70929 UI70930 UI70931

Modules/Macros

• DFHD2CC  DFHD2CM1 DFHD2CO  DFHD2D2  DFHD2DUF DFHD2EX1 DFHD2EX2
  DFHD2EX3 DFHD2IN1 DFHD2IN2 DFHD2MSB DFHD2RL  DFHD2RP  DFHD2ST
  DFHD2STP DFHD2STR DFHD2TM  DFHD2TRI DFHDSMT  DFHSIB1
  

Fix information

• Fixed component name

  CICS TS Z/OS V5

• Fixed component ID

  5655Y0400

Applicable component levels

• R100 PSY UI70931

     UP20/08/07 P F008

• R200 PSY UI70930

     UP20/08/07 P F008

• R300 PSY UI70929

     UP20/08/07 P F008

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.