I have a server with a 3Ware 9650SE 8 port controller. I had an 8 drive raid 5 array with a hot spare drive as part of the array of roughly 3.87 TB in size. When I signed into the server today, I found that I have now TWO arrays - 1 array with all drives ok, but the hot spare is no longer a member, and a second array with only the host spare in the array (same size) with only the hot spare marked as good and all the other drives (which are OK members in the other array) marked as degraded.
I have a backup, but its uncertain if its corrupted.
Any advice on what caused this to happen. What to do next? should I delete the second array and merge the drive back into the functioning array?