A PROCESS_REFLIST request allows you to indicate that a set of data items has been recently referenced, even in the absence of actual read or write activity against those data items. This causes the storage class queue to be re-ordered and the data items in the list to be considered recently referenced. The least recently referenced data items are the first to be considered for a reclaim. See z/OS MVS Programming: Sysplex Services Guide for more information on reclamation and referenced versus unreferenced.

The list of data items to be processed should be supplied in the storage area specified by BUFLIST or BUFFER. You must also specify the number of names (NUMNAMES) contained in the buffer(s). The data items are processed only if the connection has registered interest in the data items and the data items are associated with the specified storage class (STGCLASS).