I have a 2008 Xserve with 3 - 1tb drives. What is a compatible model I can use for the drive tray? My primary 1tb drive died , no idea why but I get no activity or boot. I was able to throw server on my drive 2 and can at least get my lol movies off drive 3. They seem to be pretty cheap on ebay (Hitachi Drivestars). Oh does anyone know what the warranty is on these drives? I cant find a serial number on any of 3 units , its hard to decern. Thanks guys.