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MF61629 - LIC-DISK-UNPRED No DS8000 HyperSwap Failover

PTF Cover Letter


PTF ( Program Temporary Fixes ) Cover letter


Order this fix

Abstract

LIC-DISK-UNPRED No DS8000 HyperSwap Failover


Pre/Co-Requisite PTF / Fix List

REQ  LICENSED           PTF/FIX  LEVEL

TYPE PROGRAM  RELEASE   NUMBER   MIN/MAX  OPTION
---- -------- --------- -------  -------  ------
TR   5770999  V7R2M0    MF99104   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,
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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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REGARDING THE PTF.





APAR Error Description / Circumvention

-----------------------------------------------
On an IBM i system with a valid DS8000 HyperSwap configuration,
HyperSwap failover does not occur. The CHGHYSSTS command with
the *SWAP option fails with an error when the state of Metro
Mirror replication is such that a failover should work.

CORRECTION FOR APAR MA45419 :
-----------------------------
A PTF will be created to fix this problem. The PTF should be
applied on systems with DS8000 HyperSwap disk units. The PTF has
no effect on systems with other types of disk units.

CIRCUMVENTION FOR APAR MA45419 :
--------------------------------
None.


DESCRIPTION OF PROBLEM FIXED FOR APAR MA45477 :
-----------------------------------------------
CPPEA33 messages may be sent to the QSYSOPR message queue when
DS8000 HyperSwap units are switched to another IBM i system
using PowerHA.

CORRECTION FOR APAR MA45477 :
-----------------------------
A PTF will be created to correct the problem. This PTF should be
applied to systems with DS8000 HyperSwap disk units attached.
The fix will prevent some CPPEA33 messages when HyperSwap disks
units are switched to another system, others will not be
prevented. Some CPPEA33 messages can be expected due to
unpredictable timing scenarios that occur when disk units are
switched to another system.

CIRCUMVENTION FOR APAR MA45477 :
--------------------------------
None.


DESCRIPTION OF PROBLEM FIXED FOR APAR MA45512 :
-----------------------------------------------
Disk path status for a DS8000 HyperSwap value may be incorrect
after an unplanned HyperSwap failover. This pertains to the
Display Disk Path Status panel under SST. Specifically, the path
status value for the DS8000 volumes that were primary before the
HyperSwap failover may show a path status of 'Standby' even
though HyperSwap replication has not been started.

CORRECTION FOR APAR MA45512 :
-----------------------------
A PTF will be created to correct the problem. The PTF should be
applied to partitions with DS8000 HyperSwap disk units attached.

CIRCUMVENTION FOR APAR MA45512 :
--------------------------------
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
--------------  ------------------------------------------------------------
     NONE

Summary Information

System..............................i
Models..............................
Release.............................V7R2M0
Licensed Program...............5770999
APAR Fixed..........................View details for APAR MA45419
View details for APAR MA45477
View details for APAR MA45512
Superseded by:......................View fix details for PTF MF99109
Recompile...........................N
Library.............................QSYS
MRI Feature ........................NONE
Cum Level...........................C6127720


System i Support

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Document Information

Modified date:
11 April 2016