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SI55306 - HASM-INCORROUT - QYASRTVDDD option 2 allows other nodes to c

PTF Cover Letter


PTF ( Program Temporary Fixes ) Cover letter


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Abstract

HASM-INCORROUT - QYASRTVDDD option 2 allows other nodes to c


Pre/Co-Requisite PTF / Fix List

REQ  LICENSED           PTF/FIX  LEVEL

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.

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APAR Error Description / Circumvention

-----------------------------------------------
QYASRTVDDD option 2 allows other nodes to change data

CORRECTION FOR APAR SE59582 :
-----------------------------
QYASRTVDDD API has been corrected to fix the problem

CIRCUMVENTION FOR APAR SE59582 :
--------------------------------
None.


DESCRIPTION OF PROBLEM FIXED FOR APAR SE59907 :
-----------------------------------------------
Improve reliability and performance of large clusters.

CORRECTION FOR APAR SE59907 :
-----------------------------
The cluster will send fewer messages and will have cluster
resource group (CRG) jobs only on cluster nodes in the CRG
recovery domain.

CIRCUMVENTION FOR APAR SE59907 :
--------------------------------
None.


DESCRIPTION OF PROBLEM FIXED FOR APAR SE60997 :
-----------------------------------------------
Due to an internal lock conflict with cluster, it may cause
cluster code to hit an exception which results in MSGMCH2601 in
the QCSTCRGM job, causing the job to potentially end. The ending
of that job could result in an unpredictable set of events
depending on which node in a cluster that the job is ending on.

One example of an unpredictable event is that it could trigger
failover activities to start in a geomirror environment. The
iASP or iASPs vary off and then CRG recovery domain roles
change.

CORRECTION FOR APAR SE60997 :
-----------------------------
The QCSTCRGM job will avoid the lock conflict, and so the
unexpected ending of the QCSTCRGM job, by caching queue
information.

CIRCUMVENTION FOR APAR SE60997 :
--------------------------------
None.


DESCRIPTION OF PROBLEM FIXED FOR APAR SE61086 :
-----------------------------------------------
OSP-INCORROUT Fixes for reduced cluster messages

CORRECTION FOR APAR SE61086 :
-----------------------------
Several minor fixes for reduced cluster messages.

1. Adding the same CRG node to a CRG will no longer cause the
CRG job to end.
2. A cluster API request will not hang if there are no active
CRG nodes.
3. A CRG will be deleted from a node not in the recovery domain
if all the CRG nodes have been removed from the cluster.

CIRCUMVENTION FOR APAR SE61086 :
--------------------------------
None.


Activation Instructions


None.




Special Instructions


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.

********************************************************************
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 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
--------------  ------------------------------------------------------------
   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

System..............................i
Models..............................
Release.............................V7R2M0
Licensed Program...............5770SS1
APAR Fixed..........................View details for APAR SE59582
View details for APAR SE59907
View details for APAR SE60997
View details for APAR SE61086
Superseded by:......................View fix details for PTF SI79263
Recompile...........................N
Library.............................QSYS
MRI Feature ........................NONE
Cum Level...........................C5135720


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Document Information

Modified date:
25 March 2022