Note 1266144 - ZDATE_LARGE_TIME_DIFF with AIX 5.3 TL7,TL8 and AIX 6.1

Summary

Symptom

On your SAP System you get a lot of ZDATE_LARGE_TIME_DIFF errors and as a consequence you might observe a SAP system down situation.

Reminder:

Since you might have upgraded your system since the last DST change to AIX 5.3 TL7, AIX 5.3 TL8 or AIX 6.1 TL1, you might be endangered to hit the problem described in this note, if you did not apply at minimun the service packs as described below. Therefore make sure your system is at the recommended level before the DST change occurs in your country.

Reason and Prerequisites

Due to a defect which is corrected by the IBM APARs IZ22211, IZ22212 and IZ22292, for certain timezone settings some api's return time/date information which might show the change from summer time a few days earlier than expected. The SAP Kernel might detect this inconsistency under certain conditions and throws short dumps with the symptom ZDATE_LARGE_TIME_DIFF. This error might occur in every time zone.

The error is related to the version of the fileset bos.rte.libc. If the version of the fileset belongs to the Releases AIX 5.3 TL7 and TL8 and AIX 6.1 and has lower version as documented below you might be affected.

Solution

The fix for the problem is implemented in:

AIX 5.3 TL8 SP2

AIX 5.3 TL7 SP4

AIX 6.1 TL1

The operating system will report the OS level with the command:

oslevel -s

You should also check the version of the filesets bos.rte.libc and bos.adt.prof with the following commands and make sure they are on the recommended level:

AIX 6.1:

lslpp -L bos.rte.libc -> should be at least 6.1.1.1
lslpp -L bos.adt.prof -> should be at least 6.1.1.1

AIX 5.3 TL8:

lslpp -L bos.rte.libc -> should be at least 5.3.8.2
lslpp -L bos.adt.prof -> should be at least 5.3.8.2

AIX 5.3 TL7:

lslpp -L bos.rte.libc -> should be at least 5.3.7.5
lslpp -L bos.adt.prof -> should be at least 5.3.7.5

More information is available on following WEB sites:

http://www14.software.ibm.com/webapp/set2/subscriptions/pqvcmjd?mode=18&ID=4428

http://www14.software.ibm.com/webapp/set2/subscriptions/pqvcmjd?mode=18&ID=4427

http://www14.software.ibm.com/webapp/set2/subscriptions/pqvcmjd?mode=18&ID=4429


Please download and install the according Fix from:

http://www-933.ibm.com/eserver/support/fixes/

Those fixes were recommended as High Impact in the Technical Support Bulletin - UNIX in June 2008. If you are not yet subscribed to this service please do so on:

http://www14.software.ibm.com/webapp/set2/subscriptions/pqvcmjd

Header Data

Release Status:	Released for Customer
Released on:	26.02.2009 07:48:59
Master Language:	English
Priority:	HotNews
Category:	External error
Primary Component:	BC-OP-AIX IBM AIX