When multiple target volumes and the REPLACE or REPLACEUNCONDITIONAL keyword are specified, more than one existing data set may qualify as a preallocated target. The first existing data set that qualifies as a preallocated target when you use the OUTDDNAME/OUTDYNAM list order is used as the target data set. For non-VSAM data sets that require catalog verification, the catalog standard order of search determines the data set used as the preallocated target.

The device-selection criteria used for the data set copy operation (same, like, then unlike device preference) is not observed if a preallocated data set target is used.