Resource-deletion call (RDC)

The resource-deletion call (RDC) controls the deletion of resources at data set end (DSE). This call, which is optional, is controlled by the XTP7NDEL field. This exit call is selected on the basis of resource type.

PSF deletes resources by applying a least-recently-used algorithm. PSF uses this method to maintain the number of resources loaded, but you can use Exit 7 to take full or partial control of resource deletions. These topics, Partial control of resource deletion and Full control of resource deletion, describe the PSF deletion algorithm.