RE: Damaged Catalog Alert

Alan,

On what release of Z/os did this happen?

________________________________

From: Alan Schwartz [mailto:alan.schwartz@xxxxxxxxxxxx
Sent: Wed 6/27/2007 8:50 AM
To: IBM-MAIN@xxxxxxxxxxx
Subject: Damaged Catalog Alert



We had a catalog break a little yesterday. First symptoms were an svc
dump and a cluster of messages like:

DUMP TITLE=CAS DYNAMIC DUMP-IGG0CLEG RC26 RSN8
IEC331I 026-008(21080018),CA0877 ,$ISDREXX,IGG0CLEG
IEC331I CATALOG.MISC.UCAT
IEC332I GETO,GFL ,ICDV,ACD1
IEC333I L024(033),DE,CATALOG.MISC.UCAT,

I sent the dump to IBM and they came back with:

Looking at your dump, it looks like a match for
UA33288, which is the PTF for OA19870. To verify this, can you Examine
catalog CATALOG.MISC.UCAT.

Title for OA19870 is CATALOG IN ECS EXTENDS BUT ITS VVDS IS MISSING AN
EXTENT

ERROR DESCRIPTION:
A catalog in ECS took a new extent but later errors were
encountered on its re-open after an AUTOTUNE. Message
IEC331I 026-008(21080018) was issued and catalog failed to
open the catalog. EXAMINE showed errors IDC11728I DATA FOUND IN
EMPTY CI

PROBLEM DESCRIPTION: Since enough documentation could not be
obtained to ascertain the root cause of
this problem, we have added diagnostic
checks that will detect and issue a
dump when a VVR that is about to be
written would break the catalog (5
different checks). Also the VVR I/O is
not performed, thereby preventing any
breakage.

PLEASE NOTE THIS APAR IS NOT MARKED HIPER. I have addressed with with IBM
and they are looking
at why that might have happened.

Our Storage group worked with Dino Software and we were able to get the
catalog fixed. We also disabled ECS
until we can get the fix installed

Alan Schwartz
Assurant Corporate Technology
z/OS Lead Systems Programmer




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