As my sibling says, zfs send and receive is excellent. If your datasets are encrypted they remain encrypted at the other end, without any requirement to unlock them on your backup server (should you only partially trust it, for example.) It works for incrementals but you have to manually specify the delta point for each send β itβs not like rsync where it figures out the differences automatically.
I use zfs send/recv to update a pile of USB drives each time I do a physical offsite backup. I also use it to gather data from other hosts onto my main data computer.
Once everything is there I then archive each snapshot of each filesystem as a new borg archive. This is efficient β borg only backs up changes β but it requires a rescan of all the data. This happens at ~50MB/s on my opteron with 4TB WD Red HDDs.
I use zfs send/recv to update a pile of USB drives each time I do a physical offsite backup. I also use it to gather data from other hosts onto my main data computer.
Once everything is there I then archive each snapshot of each filesystem as a new borg archive. This is efficient β borg only backs up changes β but it requires a rescan of all the data. This happens at ~50MB/s on my opteron with 4TB WD Red HDDs.