Our server is getting low on space. We are running Raid 1 with 2 identical 1-T drives. I have a new 2-T drive and would like to get a second one and setup Raid 1 around them. How can I get this to work? I need to get the first drive mirrored off one of the original 1-T drives but it will end up as only 1-T. If I then introduce the second 2-T drive will the mirror expand to use all the available space or will it remain with only 1-T and the balance lost. OR can I setup a second Raid 1 and capture the balance of both new drives?