The philosophy behind the restore allocation technique is to maximize system catalog integrity and reduce the creation of disconnected data sets. Therefore, the sequence for selecting a target volume for the restored data set is as follows:
Allocation uses the specified volume. If the allocation fails to the specified volume, the restore is terminated. (Mutually exclusive of POOL parameter).
A pool name from the specified parmlib member DASDPOOL is used. If allocation fails for all volumes within the specified pool, the restore is terminated. (Mutually exclusive of VOL parameter).
Allocation is directed to the original source volume. If allocation to the original source volume fails, an allocation attempt is made to the default pool. If a default pool is not specified and the allocation fails, the restore is terminated.
Note: See sysparms RESCRCAT, RESCHCAT, and RECCHCAT, in the Systems Guide. Under certain conditions, the allocation results can vary.
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