I called mitel and have an advanced replacement drive coming our way but I still need a drive like yesterday. At the moment this Hitachi Drive wont even repartition. So I need something until the replacement arrives. Anyone ever had success with a particular brand other than the Hitachi. Tried Western Digital spare last night but it did not fit. I know about all the void your warranty stuff, but when your down....you lose more money by the minute than what the whole phone system is worth. Just looking for a temp solution