I've probably spent way too much time thinking about Linux backup over the years. But thankfully, I found a setup that works really well for me in 2018 or so, used it for the last few years, and I wrote up a detailed blog post about it just a month ago: https://amontalenti.com/2024/06/19/backups-restic-rclone The tools I use on Linux for backup are restic + rclone, storing my restic repo on a speedy USB3 SSD. For off…
Do you have much of an opinion on why you went with Restic over Borg? The single Go binary is an obvious one, perhaps that alone is enough. I remember some people having un-bound memory usage with Restic but that might have been a very old version.
1 - some of my first experiences with backup failures were due to media problems -- this was back in the days when "backup" pretty much meant "pipe tar to tape" and while the backup format was simple, tape quality was pretty bad. These days, media -- tape or disk -- is much more reliable, but backup formats are much more complex, with encryption, data de-dup, etc. Therefore, I consider the backup format to be at least as much of a risk to me now as the media. So, anyway, I do two backups: the local one uses restic, the cloud backup uses borg.
2 - I use rsync.net, which I generally like a lot. I wrote up my experiences with append-only backups, including what I did to make them work with rsync.net here: https://marcusb.org/posts/ransomware-resistant-backups/