Did this happen recently and does this happen with all systems as well? Error might be caused from a SATA controller issue. Researching this error on the net i came up with very little info. If this was just recent what changes could have taken place like the motherboard or controller?
I can't tell if this just ocurred all of a sudden, I wasn't responsible for coping with that machine until now - and the guy who was has left a few months ago. As far as I know, noone ever tried to restore data from the shares because we had no problems at all *knocks on wood*
It sounds like a hardware issue. Is there any possibility to check some log files on the DSS that may be of help?