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MF58708 - OSP-PERFM CHGASPACT *SUSPEND OR *FRCWRT IN GEOGRAPHIC MIRROR

PTF Cover Letter


PTF ( Program Temporary Fixes ) Cover letter


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Abstract

OSP-PERFM CHGASPACT *SUSPEND OR *FRCWRT IN GEOGRAPHIC MIRROR


Pre/Co-Requisite PTF / Fix List

REQ  LICENSED      PTF/FIX  LEVEL

TYPE PROGRAM  REL  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 'IBM License Agreement for Machine
Code', the terms of which were provided in a printed document that was
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON INFRINGEMENT,
REGARDING THE PTF.





APAR Error Description / Circumvention

-----------------------------------------------
In a geographic mirroring environment, the production system
issues a CHGASPACT <iasp_name> *SUSPEND or a CHGASPACT
<iasp_name> *FRCWRT. This does not complete, and results in a
CPI096F.

On the mirror copy system, there was excessive faulting seen in
the CSTCDATAPORT task at the time the error message was posted
on the production system. Ethernet line utilization, as seen in
collection services data on both systems, increased
significantly during this time.

In this particular geographic mirror configuration, there are 4
data port lines/interfaces on each system, although it is
possible for this issue to occur in other configurations.

CORRECTION FOR APAR MA43744 :
-----------------------------
The processing on the mirror copy side will be changed to more
efficently use resources such as to not overrun the pool of
available resources.

CIRCUMVENTION FOR APAR MA43744 :
--------------------------------
None.


Activation Instructions


None.




Special Instructions


None.


Default Instructions

THIS PTF CAN BE APPLIED IMMEDIATE OR DELAYED.



Supersedes

PTF/FIX NO(S).  APAR TITLE LINE
--------------  ------------------------------------------------------------
     NONE

Summary Information

System..............................i
Models..............................
Release.............................V6R1M1
Licensed Program...............5761999
APAR Fixed..........................View details for APAR MA43744
Superseded by:......................
Recompile...........................N
Library.............................QSYS
MRI Feature ........................NONE
Cum Level...........................C5063610


System i Support

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Document Information

Modified date:
27 June 2014