PTF Cover Letter
PTF ( Program Temporary Fixes ) Cover letter
LIC-MEDIA-TAPE MULTIPATH IMPROVEMENTS
Pre/Co-Requisite PTF / Fix List
REQ LICENSED PTF/FIX LEVEL
TYPE PROGRAM RELEASE NUMBER MIN/MAX OPTION
---- -------- --------- ------- ------- ------
PRE 5770999 V7R3M0 MF60907 00/00 0000
CO 5770999 V7R3M0 MF61621 00/00 0000
CO 5770999 V7R3M0 MF61410 00/00 0000
CO 5770999 V7R3M0 MF60973 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
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
-------------------------------------------------
If an adapter is DLPAR removed and a tape resource is deleted
the hardware resource information (HRI) is destroyed and not
re-created when the adapter is DLPAR added and the drive reports
back in to the system. The tape hardware driver needs to check
for the destroyed HRI and create new HRI when the device reports
back in.
A deadlock may occur between two tasks if a muli-path failover
fails and another job tries to display the status of the tape
devices (WRKMLBSTS or WRKCFGSTS) while the failover is
occurring.
CORRECTION FOR APAR 'MA45413' :
-------------------------------
The code has been changed to detect when the HRI is destroyed
and create new HRI.
The code has been changed to prevent the deadlock when a
multi-path failover fails.
CIRCUMVENTION FOR APAR 'MA45413' :
----------------------------------
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
-------------- ------------------------------------------------------------
MF61405 LIC-MEDIA-TAPE MULTIPATH IMPROVEMENTS
MF60972 LIC-MEDIA-TAPE MULTIPATH ENHANCEMENTS
MF60972 LIC-MEDIA-TAPE MULTIPATH IMPROVEMENTS
MF60972 LIC-MEDIA-TAPE MULTIPATH FIXES
Summary Information
System.............................. i
Models..............................
Release............................. V7R3M0
Licensed Program.................... 5770999
APAR Fixed.......................... View details for APAR MA45413
Superseded by:...................... View fix details for PTF MF71401
Recompile........................... N
Library............................. QSYS
MRI Feature ........................ NONE
Cum Level........................... C6299730
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Modified date:
26 October 2023