The new form of the VARY SMS,STORGRP|VOLUME command allows you to update space statistics in the ACDS for a pool storage group or a DASD volume. Because of the potential for the command to involve thousands of volumes, no immediate LSPACE is issued in response to the VARY command. Instead, SMS issues LSPACE and updates the space statistics when it is processing a call that requests information about the storage group or volume.
For details on the VARY SMS,STORGRP|VOLUME command, refer to the topic about Changing the SMS Status of a storage group or volume in z/OS MVS System Commands.