Well, not as such. After a long and boring fight to restore my data unto my backup, i found that in windows Disk Management, the disc stood as "offline". When switched to online, i coudl then create a new partition on it, and use, but raid controller never saw it at all.. Have a sneaking suspicion that the raid controller for some reason turned ... well, off... that make any sense? I know it still shouldnt explain why the partition disapeared..
Putting things in writing, doesnt make me feel smarter... lol, rather puts holes in my little theory... damn... back to the drawing board.. :P