Ok so I use a external 4tb hdd external as my iTunes and photo storage instead of my internal hdd. Will time machine back up these files since they are a target drive for iPhoto and iTunes? I'm using a 2tb time capsule with a 1tb hdd also attached with the time capsule usb. Also I store my camera footage in a separate file on the 4tb. So is this possable to set up time machine to save internals and externals.