I have a server running Debian with 24 TB of storage. I would ideally like to back up all of it, though much of it is torrents, so only the ones with low seeders really need backed up. I know about the 321 rule but it sounds like it would be expensive. What do you do for backups? Also if anyone uses tape drives for backups I am kinda curious about that potentially for offsite backups in a safe deposit box or something.
TLDR: title.
Edit: You have mentioned borg and rsync, and while borg looks good, I want to go with rsync as it seems to be more actively maintained. I would like to also have my backups encrypted, but rsync doesn’t seem to have that built in. Does anyone know what to do for encrypted backups?
How do you handle the cache invalidation issue with Borg when backing up multiple systems to one repo? For me if I access a Borg repository from multiple computers (and write from each) it has to rebuild the cache each time which can take a long time.
I seperate them by archive name prefix and never had the issue you describe.
Edit: it seems I just never noticed it, but the docu suggest you’re right. Now I am confused myself lol.
https://borgbackup.readthedocs.io/en/stable/faq.html#can-i-backup-from-multiple-servers-into-a-single-repository
big reason why i switched to kopia, borg just doesnt cut it anymore…
Easy: I make a Borg repository not only for a single server but for each directory. In this way if I need a file from nextcloud with an extremely generic name like “config” I only search in there and not sift between 100k similarly named files