Hello, I'd like to set up a software RAID 1. I'm not computer illiterate, I've just never worked with a RAID setup before. I have a 1.5TB (about 75% filled) and a 1TB (still not formatted). I'd like to run 1TB of RAID 1 and leave the rest as another partition, is this possible? Also, do the drives need a fresh format? Am I missing anything else? Thanks!