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How It Works

CA Disk Auto-Restore Hook has program logic at their entry points which determines if each instance of the hook is to run or not. This determination can be based on either a specific job/task name or DD statement. In the case of the Test Auto-Restore Hook, care has been taken to ensure that the production hook runs only when the test hook does not run, and vice versa.

The Test Auto-Restore Hook only operates on jobs/tasks, which have a certain predefined name as their job/task name, or on jobs, which include a certain pre‑defined DD statement name. This is configurable using the following system parameters:

ARJOBEXC

The value of this system parameter is the pre-defined job name. It can also be a task name (that is, a userid). For detailed information, see sysparm description for ARJOBEXC _jobname in the Systems Guide.

ARDDNEXC

The value of this system parameter is the pre-defined DD statement. For detailed information, see the sysparm description for ARDDNEXC_ddname in the Systems Guide.