SI56614 - HASM-HA-F/QCSTADSIMP-T/QCSTADSIMP-MSGMCH0601 MSGMCH0601 DURI

TYPE PROGRAM  RELEASE   NUMBER   MIN/MAX  OPTION
---- -------- --------- -------  -------  ------
NONE



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.

SUBJECT TO ANY WARRANTIES WHICH CAN NOT BE EXCLUDED OR EXCEPT AS EXPLICITLY
AGREED TO IN THE APPLICABLE LICENSE AGREEMENT OR AN APPLICABLE SUPPORT
AGREEMENT, IBM MAKES NO WARRANTIES OR CONDITIONS EITHER EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OR CONDITIONS OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON INFRINGEMENT,
REGARDING THE PTF.

The applicable license agreement may have been provided to you in printed
form and/or may be viewed using the Work with Software Agreements (WRKSFWAGR)
CL command.





APAR Error Description / Circumvention

-----------------------------------------------
During cluster node start up, within the Admin Domain CRG job
and/or during Administrative Domain CRG job start up, a rare
issue can be experienced where there is a problem when creating
an internal join message where the allocated space gets freed up
inadvertently while it's still being used. This may result in
MSGMCH0601 and also generates dumps in the job. There may also
be a MSGCPI93B2 that contains a symptom string similar to 5770
SP/QCSTADSIMP MOD/CSTADJOINS RC3.

CORRECTION FOR APAR SE61669 :
-----------------------------
The cluster code is changed to not free up the allocated space
until it is done.

CIRCUMVENTION FOR APAR SE61669 :
--------------------------------
None.


DESCRIPTION OF PROBLEM FIXED FOR APAR SE61954 :
-----------------------------------------------
Due to a timing window, the admin domain join code is
incorrectly processing the second message instead of the first
message from the same sender.

CORRECTION FOR APAR SE61954 :
-----------------------------
The timing window is closed so the the message processing is
correct.

CIRCUMVENTION FOR APAR SE61954 :
--------------------------------
None.


Activation Instructions


None.




Special Instructions


The PTF must be applied on all nodes in the cluster. However, it is not
necessary to update all cluster nodes at the same time. On each node in
the cluster: end clustering, apply the PTF, then start clustering.

********************************************************************
THE FOLLOWING ARE SUPERSEDED SPECIAL INSTRUCTIONS. IF THE SUPERSEDED
PTF HAS ALREADY BEEN APPLIED AND ITS SPECIAL INSTRUCTION FOLLOWED,
IT IS NOT NECESSARY TO FOLLOW THAT SPECIAL INSTRUCTION AGAIN.
********************************************************************

SPECIAL INSTRUCTIONS FOR SUPERSEDED PTF SI56541 :
=================================================

On each node in the cluster, end clustering, apply the fix, and then
start clustering. It is not necessary to update all nodes at the same
time, however, any node without the fix will continue to be a potential
source of the problem.

SPECIAL INSTRUCTIONS FOR SUPERSEDED PTF SI51892 :
=================================================

On each node in the cluster, end clustering, end the QPRFSYNCH job,
apply the fix, and then
start clustering. It is not necessary to update all nodes at the same
time, however, any node without the fix will continue to be a potential
source of the problem.


Default Instructions

THIS PTF CAN BE APPLIED IMMEDIATE OR DELAYED.



Supersedes

PTF/FIX NO(S).  APAR TITLE LINE
--------------  ------------------------------------------------------------
   SI56541      HASM-HA-WAIT CRG STATUS MISMATCH AMONGST NODES IN CLUSTER DU
   SI56541      HASM-INCORROUT RMVCRGNODE Partially Completed then Hung in G
   SI55306      HASM-INCORROUT - QYASRTVDDD option 2 allows other nodes to c
   SI55306      OSP-OTHER-PERFM Improve reliability and performance of large
   SI55306      HASM-HA-F/#CFOCHKR-T/QCSTCMN-MSGMCH2601 MSGMCH2601 ENCOUNTER
   SI55306      OSP-INCORROUT Fixes for reduced cluster messages
   SI52828      HASM-INCORROUT CHGCRG *CHGCUR ISSUE XSM WITH GEOGRAPHIC MIRR
   SI52648      OSP-INCORROUT Same dataport address allowed for the same CRG
   SI51892      OSP-INCORROUT Clustering pre-GA fixes
   SI51892      OSP-INCORROUT i SW FST: V7R2: Admin Domain will not start pr
   SI51892      INCORROUT ADDDEVDMNE command hangs in mixed-released cluster

Summary Information

IBM i Support