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DB2 Red Alert – DB2 10 Data Sharing Customers

April 3rd, 2013 - by

IBM has issued the following Red Alert warning of a possible data integrity issue for customers running DB2 10 for z/OS in a data sharing environment:

 

IBM 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.

 

For more details, please refer to http://www14.software.ibm.com/webapp/set2/sas/f/redAlerts/20111116.htm l

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