DFSMS provides access method services to examine DASD volume usage, and to produce a data set containing the results. Looking at the past history and growth of your storage can help you decide when to add DASD volumes to accommodate future growth. This function extracts information about data sets on DASD and migrated and backed-up data from DFSMShsm control data sets. You can use this information for billing or analysis.

Related reading: For more information about access method services, see z/OS DFSMS Access Method Services Commands.