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Explicit ATL Mounts

An explicit or forced ATL mount occurs when a user issues the MOUNT command and specifies an ATL tape drive based on physical location, group, real address, or unit type. When any of these options are specified, only an ATL drive can satisfy the request.

CA VM:Tape moves volumes as needed, for example, when the specified tape is not at the same location as the explicitly requested ATL location. In this case, CA VM:Tape ejects the tape from its current location, and sends a message to the operator to insert the tape into the requested ATL location.