CICS VSAM Transparency for z/OS, Version 1.2


Data recovery

Changes to DB2® tables are accumulated until one of the following events occur, at which point the updates are committed:

Updates to VSAM files are handled in the same way by CICS.

Changes to DB2 tables are backed out in the following circumstances:

Updates to VSAM data sets are backed out in the first two cases. If you have existing CICS programs updating DB2 and VSAM resources in the same unit of work, a ROLLBACK TO SAVEPOINT call issued by your application program will undo changes to CICS VT migrated DB2 tables. You should consider how this affects your CICS application programs before migrating your production data.

When you migrate VSAM data sets to DB2 using CICS VT there are no other specific application recovery implications for CICS programs.





Last updated: December 6, 2013 20:43:6

Information Information

Feedback


Timestamp icon Last updated: Friday, 6 December 2013


http://pic.dhe.ibm.com/infocenter/cicsts/v5r1/topic///topics/cvtug_data_recov.html