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MF55396 - LIC-MEDIA-TAPE Configuration change while varied on can TI m

PTF Cover Letter


PTF ( Program Temporary Fixes ) Cover letter


Order this fix

Abstract

LIC-MEDIA-TAPE Configuration change while varied on can TI m


Pre/Co-Requisite PTF / Fix List

REQ  LICENSED      PTF/FIX  LEVEL

TYPE PROGRAM  REL  NUMBER   MIN/MAX  OPTION
---- -------- ---  -------  -------  ------
PRE  5770999  710  MF51665   00/00    0000
PRE  5770999  710  MF50146   00/00    0000
PRE  5770999  710  MF50147   00/00    0000
CO   5770999  710  MF55397   00/00    0000
CO   5770999  710  MF54546   00/00    0000
CO   5770999  710  MF54067   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.

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REGARDING THE PTF.





APAR Error Description / Circumvention

-----------------------------------------------
There is a timing window that occurs when a VIOS attached tape
drive changes configuration and appears to be a new tape.  This
causes the IOPless device driver to respond twice to a single IO
request, which will terminate the partition.

CORRECTION FOR APAR MA41948 :
-----------------------------
Apply this fix to ensure the system properly handles the
configuration change without causing a machine termination.

CIRCUMVENTION FOR APAR MA41948 :
--------------------------------
None.


Activation Instructions


None.




Special Instructions


********************************************************************
THE FOLLOWING ARE SUPERSEDED SPECIAL INSTRUCTIONS. IF THE SUPERSEDED
PTF HAS ALREADY BEEN APPLIED AND ITS SPECIAL INSTRUCTION FOLLOWED,
IT IS NOT NECESSARY TO FOLLOW THAT SPECIAL INSTRUCTION AGAIN.
********************************************************************

SPECIAL INSTRUCTIONS FOR SUPERSEDED PTF MF49381 :
=================================================

The configuration should be varied off and back on to activate this
fix.


Default Instructions

THIS PTF CAN BE APPLIED IMMEDIATE OR DELAYED.



Supersedes

PTF/FIX NO(S).  APAR TITLE LINE
--------------  ------------------------------------------------------------
   MF54811      LIC-MEDIA-TAPE
   MF54294      LIC-MEDIA-TAPE Library drive hang condition requiring IPL
   MF54108      LIC-OTHER-UNPRED LIC-MEDIA-TAPE ROBOT LOST AFTER POWER ON RE
   MF53890      LIC-MEDIA-TAPE-SRCB6001215-UNPRED MEDIA LIBRARY ERROR
   MF53455      LIC-MEDIA-TAPE Prepare for future function
   MF52674      LIC-MEDIA-TAPE Wrong IOP dump SRC
   MF52479      LIC-MEDIA-TAPE D MODE IPL FAILS
   MF52214      LIC-MEDIA-TAPE Prepare for future function
   MF52214      OSP-SRCB6000305-UNPRED SRCB6000305 AFTER A DSPTAP
   MF51459      LIC-MEDIA-TAPE Prepare for future function
   MF51501      LIC-MEDIA-TAPE Prepare for future function
   MF50949      LIC-MEDIA-TAPE new library with multiple control paths
   MF50572      LIC-MEDIA-TAPE Error during Vary Off
   MF50006      LIC-MEDIA-TAPE Prepare for future function
   MF49495      LIC-MEDIA-TAPE Improved tape media library FFDC
   MF49381      LIC-MEDIA-TAPE-MSGCPF5270 Drive not ready
   MF49043      LIC-MEDIA-TAPE TAPMLB not reporting
   MF48646      LIC-MEDIA-TAPE Prepare for future function
   MF48417      LIC-MEDIA-TAPE Prepare for future function
   MF48351      LIC-MEDIA-TAPE Prepare for future function
   MF47938      LIC-MEDIA-TAPE Prepare for future function
   MF47870      LIC-MEDIA-TAPE Improved FFDC

Summary Information

System..............................i
Models..............................
Release.............................V7R1M0
Licensed Program...............5770999
APAR Fixed..........................View details for APAR MA41948
Superseded by:......................View fix details for PTF MF68574
Recompile...........................N
Library.............................QSYS
MRI Feature ........................NONE
Cum Level...........................C2279710


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Document Information

Modified date:
11 June 2021