May
03
2012
Fix for APAR PM51655 – Preventing Potential Data Loss
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, behaviour.
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