Explanation: A request was made for a specified drive, but the drive was assigned.
Recommended Action: Display drive status (by using vmoprcmd -d or other means) to see the list of drives and their assignment status. Run the request later or first clear the drive assignment: stop application activity on the drive, unmount the media with tpunmount, or reset the drive. If the wrong drive was specified, submit the request again. Specify the correct drive name or index as appropriate for the interface being used.