well guys here is an update! sorry for being late,
after i was frustrated with the machine, i had a friend have a look at it for me, and it seems that,
1) the raid was never configured to begin with so it was booting of a single drive,
2) the reasons the OS died was a) because of damaged sectors,B) and it seems the smuk of the IT guy, updates the os just before it crashed.....
3) the installation was a fresh install, so i dont think there were any configurations installed,
so i'm just backing up everything and reinstalling everything.
so guys thanks for everything, learnt a lot through this ordeal ;)