The Source Slot owner is Invalid
Movement of media from the source I/E slot is not allowed because the slot is not owned by the system partition:
Change the ownership of the slot to the system partition by following these steps:
Remove the tape from the I/E slot.
Close the I/E door and let the library scan the I/E slots.
Open the I/E door and put the tape back in the top slot.
Close the I/E door and let the library rescan the I/E slots.
If Auto Assigment is disabled, select the system partition
Try the operation again.