> But forget the USB-sticks. > E.g.: Borg to local RAID every 2 hours, sync RAID with cloud every 24 hours. The problem with a fully online (non-append only)

> But forget the USB-sticks. > E.g.: Borg to local RAID every 2 hours, sync RAID with cloud every 24 hours. The problem with a fully online (non-append only) backup system is that if everything is working properly then an accidental 'rm -rf /' will propagate throughout all your supposed backups and destroy them as well. The USB drives are for that type of "Oh shit!" moment as a (possibly stale but better than nothing) backup of last resort