CICS VSAM Transparency for z/OS, Version 1.2


CICS VT operational and recovery considerations

When a VSAM record is updated by an application program, the change to the data is made immediately. When you update a DB2® row, the change is only made after a COMMIT, a CICS® SYNCPOINT or TERM. When you convert a data set to DB2 using CICS VT, you must consider how this difference between VSAM and DB2 affects your existing operational and recovery procedures.

You must also consider how to integrate the DB2 elements of CICS VT migrated data sets into your existing DB2 environment. For example, what DB2 collection will you use for your CICS VT driver packages? How does the migration affect your backup and recovery procedures?

You must understand these implications on your operational and recovery procedures before migrating any production data sets from VSAM to DB2.





Last updated: November 9, 2012 20:42:47