PTF Cover Letter
PTF ( Program Temporary Fixes ) Cover letter
OSP-MSGCPDB1AD-RC0015 VARY ON ISCSI NWSD FAILS AFTER TIMEOUT
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
delivered with the machine.
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.
APAR Error Description / Circumvention
-----------------------------------------------
The vary on of a Network Server Description (NWSD) of type
*ISCSI which has a multi-path group defined fails with message
CPDB1AD, return code 0015 logged in QSYSOPR. The previous vary
off of the NWSD did not complete successfully and stopped with
message CPD28CA after the time-out specified by the NWSD
shutdown timeout (SHUTDTIMO) keyword expired.
CORRECTION FOR APAR MA40080 :
-----------------------------
Under the right timing conditions during the vary off of an
*ISCSI NWSD that uses a multi-path group, a Licensed Internal
Code task may attempt to obtain a resource that is already held
by another task which at the same time is attempting to obtain a
resource held by the first task. This prevents either task from
proceeding, and so the vary off processing does not fully
complete. The NWSD will go to varied off state once the NWSD
shutdown timer expires, but subsequent vary on requests will
fail.
Licensed Internal Code will change to avoid the resource
contention.
CIRCUMVENTION FOR APAR MA40080 :
--------------------------------
None.
Activation Instructions
None.
Special Instructions
Vary off all Network Server Descriptions (NWSD) of type *ISCSI before
applying or removing this PTF in immediate mode.
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............................. | V7R1M0 |
Licensed Program............... | 5770999 |
APAR Fixed.......................... | View details for APAR MA40080 |
Superseded by:...................... | View fix details for PTF MF99011 |
Recompile........................... | N |
Library............................. | QSYS |
MRI Feature ........................ | NONE |
Cum Level........................... | C1116710 |
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Document Information
Modified date:
11 October 2010