If you have volumes in an automated tape library, you need to reserve shelf space outside the automated tape library if you plan to eject the volumes and retain them in a manual tape library or non-system-managed tape library. Volumes in a manual tape library can be logically ejected, left in the same shelf location and used as non-system-managed volumes.

For volumes that reside in system-managed tape libraries, a rack number is optional. If you specify a rack number for a volume residing in a system-managed tape library, the volume serial number and the rack number must be the same. You cannot change the rack number for volumes that are associated with system-managed libraries. You cannot define a rack number for logical volumes.

You can manage volume movement between system-managed libraries and storage locations, between system-managed libraries, and between non-system managed libraries and system-managed libraries by defining vital record specifications.

This topic describes how to use DFSMSrmm with system-managed tape volumes. Refer to the EDGRMMxx OPTION command SMSTAPE operand described in Defining system options: OPTION for details about controlling the functions that are provided by DFSMSrmm.