Use the RMM ADDVOLUME subcommand or the DFSMSrmm ISPF dialog to add physical volumes, logical volumes, and stacked volumes to DFSMSrmm. The volume serial number and volume status are the basic information needed for DFSMSrmm to recognize a volume. You can add more information using the subcommand or dialog or use the DFSMSrmm running modes to record information about volumes as they are used.

You can add information about volumes that reside in an automated tape library before they are entered into the automated tape library using the RMM ADDVOLUME subcommand or the DFSMSrmm ISPF dialog. For more information about adding volumes to a system-managed tape library and using DFSMSrmm with system-managed tape libraries, see Running DFSMSrmm with system-managed tape libraries.

When you add a volume to DFSMSrmm, DFSMSrmm automatically assigns a retention method to the volume. See z/OS DFSMSrmm Managing and Using Removable Media for details about how retention methods are assigned.

You set running modes with the OPMODE operand in the parmlib member EDGRMMxx. See Defining system options: OPTION for information about the DFSMSrmm running modes. See z/OS DFSMSrmm Managing and Using Removable Media for details about adding volume information to DFSMSrmm.