i need to add harddrive to the array but i can not load open manage. if i add it thru the bios will i lose any data. it is an exchange server. drive c and d have very low disk space left. what will...

I have a server that is out of warranty and Dell will not help.  I have three Disks and one is bad. I have a replacement but want to make sure I proceed without doing irreparable damage. I need som...