So my new mac mini arrives within the next week and I have been researching the options of backups and storage. I have sinced learned that it is possible to use a non apple NAS as a time capsual style backup solution. My query is, if using as a 1tb USB HDD as a time capsual to backup a 320GB mac mini will the whole drive be dedicated to the time capsual? Or can the drive be partitioned to form 2 500GB partitions? Also how big of a partition will be suitable for a 320GB mac mini to be backed up using time capsual? Edit: I should note I'm looking at an airport extreme to utilize 802.11n wifi speeds, and a such would connect a nas via USB or Ethernet to the airport extreme.