STORCLASS={SMS_storage_class}

This parameter defines the z/OS Storage Class as defined to the Data Facility/System Managed Storage, which is used to indicate what type of media the host file is kept on, and what the backup, restore, and archive policies of the installation are. The value is 1 - 8 character long and can contain numeric, alphabetic, or national characters ($, #, or @). The first character must be alphabetic or national character.