I'm working with a four drive TeraStation, setup with a Raid 10 array. Drives 1 and 4 both failed on me. I've put in two new drives (same make and model), but the device is not giving me the option to rebuild. I've attached a screen shoot. Disk 1 says "error" but give me no other details. Disk 4 says "Spare Disk".
Any suggestions would be appreciated.