Ghost? hahahaha….This is the weird part after we put cleaning tape into DPM. The cleaning tape is inside on one of the slot in tape library. But now your tape library slot indicated missing status and Slot 20 is disappear.
You need to add DWORD registry value RSMCompatMode – 8
Then restart the DPM Server and perform again tape library inventory. Your missing cleaning tape is back!
Our tape library is IBM TotalStorage 3573 Tape library (TS3100)
Credit to Robert on writing the solution.