DFSMSrmm supports Virtual Tape Server (VTS) libraries as automated system-managed libraries with extensions to that support to handle the special requirements for different volume types and functional capability. DFSMSrmm supports virtual tape server import/export and copy export in different ways, depending on whether or not DFSMSrmm stacked volume support is enabled.

When you enable stacked volume support, DFSMSrmm associates exported logical volumes with stacked volumes and manages movement of stacked volumes. When you do not enable stacked volume support, DFSMSrmm tracks export and copy export only if you have previously defined stacked volumes, but does not manage movement of stacked volumes.

DFSMSrmm supports the IBM TS7700 grid and IBM Peer-to-Peer VTS implementations. With these, you can use the names of distributed VTS libraries with DFSMSrmm. For other libraries, you must only use the names of consolidated libraries with DFSMSrmm.