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SI70676 - OSP-DB2MIRROR-UNPRED Unexpected replication state may occur

PTF Cover Letter


PTF ( Program Temporary Fixes ) Cover letter


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Abstract

OSP-DB2MIRROR-UNPRED Unexpected replication state may occur


Pre/Co-Requisite PTF / Fix List

REQ  LICENSED           PTF/FIX  LEVEL

TYPE PROGRAM  RELEASE   NUMBER   MIN/MAX  OPTION
---- -------- --------- -------  -------  ------
PRE  5770SS1  V7R4M0    SI70246   00/00    0000
PRE  5770SS1  V7R4M0    SI70247   00/00    0000
CO   5770SS1  V7R4M0    SI70054   00/00    0000
CO   5770SS1  V7R4M0    SI69954   00/00    0000



NOTICE:
-------
Application of this PTF may disable or render ineffective programs that
use system memory addresses not generated by the IBM translator,
including programs that circumvent control technology designed to limit
interactive capacity to purchased levels.  This PTF may be a prerequisite
for future PTFs.  By applying this PTF you authorize and agree to the
foregoing.

This PTF is subject to the terms of the license agreement which
accompanied, or was contained in, the Program for which you are obtaining
the PTF.  You are not authorized to install or use the PTF except as part
of a Program for which you have a valid Proof of Entitlement.

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APAR Error Description / Circumvention

-------------------------------------------------
In the Db2 Mirror environment, during early suspend processing
an unexpected replication state value may returned and used by
system code.  This can result in an unexpected failure within a
job.

CORRECTION FOR APAR 'SE71845' :
-------------------------------
Processing within the QMRDBECTLR job is updated to establish a
proper replication state value earlier within the suspend
processing.

A PTF will be created to correct the problem. For a complete
fix, the PTF should be loaded and applied to both nodes of the
Db2 Mirror pair. It is not necessary to apply the fix to both
nodes of the pair at the same time, but the problem could occur
on a node that does not have the fix applied.

CIRCUMVENTION FOR APAR 'SE71845' :
----------------------------------
None.


Activation Instructions

None.




Special Instructions

To activate this fix, the Db2 Mirror QMRDBECTLR job must be restarted.

If this PTF is applied or removed as a delayed PTF, which requires
an IPL, then no special consideration is necessary.

If this PTF is applied or removed as an immediate PTF, then:
1. Db2 Mirror replication must be suspended for maintenance using
the Db2 Mirror GUI or by using the QSYS2.CHANGE_MIRROR procedure:
CALL QSYS2.CHANGE_MIRROR(REPLICATION_STATE => 'MAINTENANCE');

2. Apply this fix if not already applied.

3. Resume Db2 Mirror replication using the Db2 Mirror GUI or by
using the QSYS2.CHANGE_MIRROR procedure:
CALL QSYS2.CHANGE_MIRROR(REPLICATION_STATE => 'RESUME');


Default Instructions

THIS PTF CAN BE APPLIED IMMEDIATE OR DELAYED.



Supersedes

PTF/FIX NO(S).  APAR TITLE LINE
--------------  ------------------------------------------------------------
   SI70664      OSP-DB2MIRROR-INCORROUT REPLICATION_DETAIL_INFO missing when
   SI70310      OSP-DB2MIRROR INTERNAL MAINTENANCE
   SI70245      OSP-DB2MIRROR INTERNAL MAINTENANCE
   SI70185      OSP-DB2MIRROR INTERNAL MAINTENANCE
   SI70053      OSP-DB2MIRROR INTERNAL MAINTENANCE
   SI69952      OSP-DB2MIRROR INTERNAL MAINTENANCE
   SI69881      OSP-DB2MIRROR INTERNAL MAINTENANCE
   SI69813      OSP-DB2MIRROR INTERNAL MAINTENANCE
   SI69752      OSP-DB2MIRROR INTERNAL MAINTENANCE
   SI69441      OSP-DB2MIRROR INTERNAL MAINTENANCE
   SI69387      OSP-DB2MIRROR INTERNAL MAINTENANCE
   SI69308      OSP-DB2MIRROR INTERNAL MAINTENANCE

Summary Information

System..............................i
Models..............................
Release.............................V7R4M0
Licensed Program...............5770SS1
APAR Fixed..........................View details for APAR SE71845
Superseded by:......................View fix details for PTF SI76229
Recompile...........................N
Library.............................QSYS
MRI Feature ........................NONE
Cum Level...........................C9304740


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Document Information

Modified date:
13 May 2021