The extended recovery facility (XRF) enables you to achieve a high level of availability. You can run an alternate CICS system that monitors your active CICS system, and takes over automatically or by operator control if the active system fails. You can also plan and execute a takeover yourself when you want to do maintenance on an active system.

Problems in the active system can be detected and isolated as soon as they occur. The alternate system can recover and restart quickly, like an emergency restart, and the time for reconnection of terminals is reduced.

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