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Access to recoverable VSAM data sets z/OS DFSMStvs Planning and Operating Guide SC23-6877-00 |
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For a non-CICS application to operate in DFSMStvs mode, begin
by requesting RLS processing in either of these ways:
In addition, do either of these tasks:
VSAM RLS support enables batch jobs to access recoverable data sets in RLS mode, but only for reading; batch jobs cannot write to these data sets in RLS mode. With DFSMStvs, batch jobs are able to read and write to recoverable data sets while CICS® is concurrently processing those same data sets. A non-CICS application must use RRS to partition the updates done to recoverable VSAM data sets into units of recovery. The application must invoke the RRS commit and backout interfaces to cause points of synchronization. The points of synchronization delineate units of recovery. If a batch job attempts to communicate with RRS and the system logger goes down, RRS suspends the job until the logger comes back up. If this happens, you cannot cancel the job. To make RRS release the job, you need to bring the system logger back up or take RRS down. |
Copyright IBM Corporation 1990, 2014
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