Well I have been reading around and the active debian mirror is 610 GB, which basically means the all data we will ever need, harmattan-dev etc included, isn't going to be any more than that! even with the debian dependancy packages synced. So one mirror for everything (plus some extra for more dev catalogs and other sources) isn't going to be more than 1 TB (1.5 for safety). Is it worth setting something like this up?