A multi-volume data set can be restored three different ways:
The multi-volume data set will be allocated to the original volumes from which it was archived. If allocation fails, the restore is terminated.
Note: CA Disk pooling is bypassed for multi-volume data sets when PRIALLOC is set to Y. Pooling products (such as CA Allocate) can redirect these data sets.
This setting consolidates the original total allocation to the new primary allocation amount. The multi-volume data set allocation is directed to a single volume, and if it does not fit on the first volume, the other volumes will be used as overflow volumes. If allocation fails, the restore is terminated. For example, if a 3-volume data set is restored to a single volume, the first volume will contain a format-1 entry and a catalog entry with the 2 remaining volumes represented only by the catalog entry. (All volumes must be online)
This setting directs the allocation to a volume using the consolidated primary allocation amount. If allocation fails, the restore is terminated. For example, if a 3-volume data set is restored to the specified volume, that volume will contain both a format-1 and a catalog entry.
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