PI33871: NEW FUNCTION

Obtain the fix for this APAR.

APAR status

• Closed as new function.

Error description

• New Function
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All DB2 11 for z/OS users migrating to DB2   *
  *                 12 for z/OS.                                 *
  ****************************************************************
  * PROBLEM DESCRIPTION: Toleration of fallback from DB2 12 for  *
  *                      z/OS.                                   *
  *                                                              *
  *                      In a Data Sharing environment, required *
  *                      for coexistence of DB2 12 for z/OS with *
  *                      DB2 11 for z/OS.                        *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  This APAR must be applied to all members of a data sharing
  group and DB2 11 started on all members before one of
  the members can be started with DB2 12 to migrate the
  DB2 catalog. Non-data sharing DB2 subsystems must also run
  with this APAR before attempting to migrate to DB2 12.
  
  This APAR allows fallback to DB2 11 after a migration to DB2 12
  and also allows release coexistence in a data sharing
  environment.
  
  Refer to the DB2 12 publications for procedures
  for migration and then subsequent fallback to DB2 11.
  

Problem conclusion

Temporary fix

Comments

• The purpose of this APAR is to allow fallback from DB2 12.
  Refer to the chapters 'Falling back' and 'Remigrating'
  in the DB2 12 Installation Guide for this procedure.
  
  ++HOLD COMMENT FOR RELEASE B10, TYPE ACT:
  After applying this PTF, you need to re-assemble and linkedit
  DSNHDECP to pick up the changes in DSNARIB. Under DB2 data
  sharing, if each member of the group has its own DSNHDECP module
  then you need to repeat the steps below for each member.
  
  These are the steps to update DSNHDECP:
     (1) Create a separate job containing only the DSNTIZP and
     DSNTIZQ steps from the job DSNTIJUZ previously edited
     by the install CLIST.
     (2) Re-assemble and linkedit the DSNHDECP load module
     by running your newly created job to produce a new
     DSNHDECP.
     (3) Stop and start your DB2.
  
  Additional Keywords:
  DB2MIGV12/K
  

APAR Information

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

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

Modules/Macros

• DSNARIB  DSNGEDLC DSNRRPRC DSNTSTR2 DSNUECMI
  DSNUECM2 DSNUESCM DSNUEXDB DSNUGMAP DSNXCATL DSNXCOBC DSNXKFUN
  DSNXLDBD DSN7GCMD
  

Fix information

• Fixed component name

  DB2 OS/390 & Z/

• Fixed component ID

  5740XYR00

Applicable component levels

• RB10 PSY UI41695

     UP16/10/20 P F610

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.