During CA Datacom Server operation, a MUF failure can occur causing the Mainframe Server region to automatically terminate. Any request from the workstation receives a communications error after the Mainframe Server region is terminated. When the Server mainframe region is terminated by the communication utility, all currently active connections are rolled back and the connections are terminated.
If there are no current database requests pending when a MUF terminates, the Mainframe Server region can detect a MUF abend. In that event, the workstation receives a database error at the next CA Datacom/DB request. When the MUF is restarted after an abend, CA Datacom/DB rolls back all requests that have not been committed.
You can successfully restart the Mainframe Server region only after the MUF has been restarted. Any time the MUF is terminated or abends and is restarted, you must terminate the Mainframe Server region (if it does not terminate automatically) and restart it.
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