It is usually not a good idea to physically jar mechanical drives unnecessarily - especially if they are running at the time. Not only can "bouncing" potentially damage a drive further, it can damage otherwise normal drives, knock cables loose, shake RAM in its slots, even crack motherboard traces due to stress from heavy components like CPU heatsinks and have other potential undesirable effects. The "... get a bigger hammer" approach generally doesn't work well with electronics and precision mechanical parts.
Open the case and check all physical connections, cables, ensure RAM is properly seated, heatsinks are still in place. etc. Then try rebooting again.
Was this software RAID or hardware RAID?
Last edited by NyteOwl; 01-11-2013 at 12:58 PM.
Reason: Fixed typos