I want to do a backup of my stuff using macrium reflect and saw the grandfather father son system recommended. Isnt that basically three different backups at the same time? wouldnt i then also need some storage space overhead? lets say i have 1TB and do a traditional 1:1 backup. then i have 2TB, two times 1TB. but when i do the GFS backup, would i end up with more than 2TB (it should be less than 3TB for the backups because they arent 1:1 copies as far as i know)? then i would need more space for my backups than my original files, basically requiring a certain amount of overhead, or am i misunderstanding this?