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MF51688 - LIC-WAIT Geographic Mirroring Deadlock Hang Condition During

PTF Cover Letter


PTF ( Program Temporary Fixes ) Cover letter


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Abstract

LIC-WAIT Geographic Mirroring Deadlock Hang Condition During


Pre/Co-Requisite PTF / Fix List

REQ  LICENSED      PTF/FIX  LEVEL

TYPE PROGRAM  REL  NUMBER   MIN/MAX  OPTION
---- -------- ---  -------  -------  ------
TR   5770999  710  MF99001   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
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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
delivered with the machine.

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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON INFRINGEMENT,
REGARDING THE PTF.





APAR Error Description / Circumvention

-----------------------------------------------
Geographic mirroring synchronization tasks can potentially get
into a deadlock condition causing geographic mirroring to hang
and the IASP to lock up to the point where users are not able to
access the IASP or recover without an IPL.

CORRECTION FOR APAR MA40195 :
-----------------------------
The deadlock condition in the geographic mirroring
synchronization tasks will be corrected.

CIRCUMVENTION FOR APAR MA40195 :
--------------------------------
None.


DESCRIPTION OF PROBLEM FIXED FOR APAR MA40206 :
-----------------------------------------------
During full synchronization, the mirror copy node of XSM
(geographic mirror) suspends.

CORRECTION FOR APAR MA40206 :
-----------------------------
The operation failure which occurs on the mirror copy node and
which causes the suspend condition will be corrected.

CIRCUMVENTION FOR APAR MA40206 :
--------------------------------
None.


Activation Instructions


None.




Special Instructions


None.


Default Instructions

THIS IS A DELAYED PTF TO BE APPLIED AT IPL TIME.



Supersedes

PTF/FIX NO(S).  APAR TITLE LINE
--------------  ------------------------------------------------------------
   MF51663      IPL-SRC0002000A-PERFM IPL-WAIT A PATH IN SHUTDOWN PATH SET T
   MF49277      IPL-WAIT A PATH IN THE SHUTDOWN PATH ARE SETTING THE REBUILD
   MF49277      OSP-PAR-940XBASE SYSTEM CRASH WITH SRCB6000105 CODE 1 : B600
   MF51480      LIC-DISK-STG-UNPRED SYNCHRONIZATION OF GEOGRAPHIC MIRRORING
   MF50607      LIC-SRCB6005121-UNPRED Geographic Mirroring may fail when do
   MF51062      LIC-OTHER-SRCB6005121-UNPRED FAILURE WHEN IASP IS BEING ACCE
   MF50408      LIC-SRCB6005121 when dasd error occurs during vary-off
   MF50256      LIC-DISK-STG-WAIT SYSTEM APPEARS HUNG

Summary Information

System..............................i
Models..............................
Release.............................V7R1M0
Licensed Program...............5770999
APAR Fixed..........................View details for APAR MA40195
View details for APAR MA40206
Superseded by:......................View fix details for PTF MF99011
Recompile...........................N
Library.............................QSYS
MRI Feature ........................NONE
Cum Level...........................C1116710


System i Support

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Document Information

Modified date:
23 November 2010