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MF66799 - LIC-DISK-OTHER-INCORROUT-DISK-D/T2145 SOME DISKS SHOW UP AS

PTF Cover Letter


PTF ( Program Temporary Fixes ) Cover letter


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Abstract

LIC-DISK-OTHER-INCORROUT-DISK-D/T2145 SOME DISKS SHOW UP AS


Pre/Co-Requisite PTF / Fix List

REQ  LICENSED           PTF/FIX  LEVEL

TYPE PROGRAM  RELEASE   NUMBER   MIN/MAX  OPTION
---- -------- --------- -------  -------  ------
TR   5770999  V7R4M0    MF99301   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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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

-------------------------------------------------
Following an IASP flashcopy, the target disks resulted in some
showing with DMP* rersources and others with DPH*. This caused
the IASP vary on to sit in DASD Checker for about 6 minutes
before moving on. The Vary On did complete and the IASP did
become Available. However when looking at the disk units, still
some were showing DPH*.

There is a very small timing window where when the DPH being
altered to DMP resources code is called, some resources may get
skipped.

Circumvention: Prior to IASP vary on a user can check the disk
resources to see if they are all showing DMP* accordingly. If
any are still showing as DPH* they can perform an IO Adapter
Reset or simply IPL the flashcopy target node and that should
allow the remaining DPH* to be converted to DMP* appropriately.

CORRECTION FOR APAR 'MA47940' :
-------------------------------
A race condition in the code was fixed that previously prevented
some drivers from updating from DPH to DMP.

CIRCUMVENTION FOR APAR 'MA47940' :
----------------------------------
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.............................V7R4M0
Licensed Program...............5770999
APAR Fixed..........................View details for APAR MA47940
Superseded by:......................View fix details for PTF MF99304
Recompile...........................N
Library.............................QSYS
MRI Feature ........................NONE
Cum Level...........................C0121740


IBM i Support

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Document Information

Modified date:
03 March 2021