so in my server, i have a 1tb drive that holds my movies, it has about 100gb free. i think i'm ok with that for now my other drive is a 1.5tb drive that holds my tv shows and misc documentaries. i'm running out of space. backing up is easy because i have another 1.5tb drive and i just run syncback to backup. the problem is that i'm running out of space. i think i will need about 3tb total, but also a decent backup system. i guess i could add another 1.5tb drive and span the volume, but i don't trust it maybe a raid config?