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User-Selectable Scratch Pools

Two assignment rules are identical only if the DSN and JOB parameters match exactly. A data set name parameter of ABC* and ABCD* could match the same data set name on a mount request, but ABCD* is more restrictive and hence not identical to ABC*. A site can create two or more identical assignment rules for the same scratch pool.

If a scratch request is satisfied by a duplicate assignment rule and the user has not specified the POOL option on the MOUNT command, the first of the duplicate assignment rules is used to assign a scratch pool to the request.

If the request is satisfied by a duplicate rule and the user has specified the POOL option, the request is assigned to the requested pool if one of the duplicate rules authorizes the requested pool.