When you bought your server you probably took raid disks. This is where your data is written to 2 disks at the same time, the simple objective being if one fails the other carries on. But what happens if one fails? If your IT company is not monitoring your server you will not know, and when the other disk fails you will loose your data. At CrackingIT we monitor our customers servers, so when a disk fails, we install a replacement and life goes on!