Device management status code 23
Message: Invalid Drive Number
Explanation: A request was made for drive, but no such drive can be found in the active configuration.
Recommended Action: Ensure that ltid was stopped and restarted after changes were last made to the device configuration. (ltid is the Media Manager device daemon on UNIX and Linux or the NetBackup Device Manager service on Windows.) Display the device configuration (by using tpconfig -d or other means) to view the list of valid drives. Specify the drive name or index as appropriate for the interface being used.