Normally I do my backups from my laptop because (1) I used Windows for it and most everything I use daily is on Linux, and (2) power outages are the bane of my backup existence because of how long it would take to make the backup. It would usually take a week.
Since figuring out a way to make the backup (to my satisfaction) in Liunx, I decided to do it from my main PC, which is a pretty decently powered gaming rig and has a power backup assuming the power doesn't go out for longer than 30 minutes.
The back up is already 28% done! It'll probably be done before I go to bed. I can hear my PC wheezing pretty hard, though.