i have a secondary drive in my macbook pro where the optical drive used to reside. im trying to use time machine to back up that drive to an external drive. how can i do this? also is there a way i can backup my ssd (system drive) to one partition of my external and backup my optical bay drive (media drive) to another partition of the same external drive? if so how can i do one or both of these in time machine? i cant figure it out? i've also heard of carbon copy but im not sure how it works. i sort of like how time machine will add in my new songs as i add them to my library.