Thursday, November 17, 2011

Red Alert : Fix for APAR PM51655 is needed on DB2 10 for z/OS data sharing environments

Here's a new Red Alert:

Fix for APAR PM51655 is needed on DB2 10 for z/OS data sharing environments as a prevention of potential data loss

BM has become aware of potential data loss when running data sharing under any mode of DB2 10 for z/OS.

DB2 10 for z/OS takes advantage of a CFCC/XES performance enhancement by allowing repeated READ CASTOUT CLASS requests to the CF to utilize a restart token and retrieve from the queue where the previous read left off . A defect has been identified in this implementation of the enhanced READ CASTOUT CLASS in DB2 10 for z/OS.

APAR PM51655 will revert the DB2 10 behavior of the READ CASTOUT CLASS to the DB2 V9, and prior releases, behavior.

Recommended Actions:

It is strongly encouraged that all DB2 10 for z/OS data sharing customers apply the fix for the APAR PM51655 as soon as possible. The corrective maintenance can be applied incrementally across the members of a data sharing group. A group wide restart is not required.

The ++APAR correction for PM51655 has been placed on the FTP server and will remain there until that time that the DB2 10 for z/OS PTF (UK73864) can be ordered via the normal service delivery channels. Access to the FTP server is as follows:

FTP Server:
Directory: /fromibm/im/
Filename: PM51655.HDBAA10 Note:
The file is binary, not tersed.
Adding a comment : it's not a straightforward link because you first have to login to the ftp server. If you don't remember your userid : anonymous without password works as well.

If you want to have an overview of all past Red Alerts, then take a look over here. You can also subscribe on that same page so you'll be notified of any future Red Alert.

No comments: