http://uncensored.i2p/readfwd?go=Citadel%20Support?start_reading_at=2099497098
For me, that's BTRFS, but you can use any filesystem that can do point-in-time snapshots. So it's simple, really: take a snapshot of the volume (or subvolume) that has Citadel on it, then rsync that snapshot to wherever you want to save it. I happen to go the extra mile and rotate my snapshots over the course of a week, but you get the idea: the...