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MF54755 - OSP-DB-OTHER-F/#CFDAMST-T/QDBAPMGR-MSGMCH1604 A MSGMCH1604 M

PTF Cover Letter


PTF ( Program Temporary Fixes ) Cover letter


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Abstract

OSP-DB-OTHER-F/#CFDAMST-T/QDBAPMGR-MSGMCH1604 A MSGMCH1604 M


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
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foregoing.

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REGARDING THE PTF.





APAR Error Description / Circumvention

-----------------------------------------------
A msgMCH1604 may occur when varying on an independent ASP that
has data as the result of a warm FlashCopy.

CORRECTION FOR APAR MA41657 :
-----------------------------
The failure on the far side of the flashcopy is that while
recovering a data space, we are going through his DSPI chain to
validate all the indexes over this object.  We discover there is
a DSPI block that points to an object that IS NOT an index
object, so we assume corruption in the object and we mark the
file soft damaged so the data can at least still be read.

It turns out the DSPI block in question is for a temporary index
over the file.  If this was a system IPL, those temp segments
would be gone and our code handles the segment not existing.  In
the case we have here. THAT TEMPORARY ADDRESS EXISTS ON THE
SYSTEM WHERE THE FLASHCOPY IASP IS BEING VARIED ON AND WHAT IS
AT THAT ADDRESS ON THE OTHER SYSTEM IS NOT AN INDEX.

CIRCUMVENTION FOR APAR MA41657 :
--------------------------------
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
--------------  ------------------------------------------------------------
     NONE

Summary Information

System..............................i
Models..............................
Release.............................V7R1M0
Licensed Program...............5770999
APAR Fixed..........................View details for APAR MA41657
Superseded by:......................
Recompile...........................N
Library.............................QSYS
MRI Feature ........................NONE
Cum Level...........................C2115710


System i Support

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Document Information

Modified date:
31 January 2012