+ 0 Votes Update - more info dhoffmann 7 years ago I found an HP Array Console and found out it is set to RAID 1 + 0. I'm not an expert on RAID, so I looked this up and found out that I should have 4 drives for this array??? I only have 2 drives at 72.8gb each.What I want to do is add 2 147.8gb drives. I have never done this before. I have been told by HP Reps that my drives are hot swappable. Do I need to power down then install the drives? Do I need to change something else or will the controller card recognize the new drives and set it up for me?