this post was submitted on 06 Feb 2026
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Syncthing Backup w Raspberry Pi (lemmy.blahaj.zone)
submitted 1 week ago* (last edited 1 week ago) by starshadow@lemmy.blahaj.zone to c/selfhosted@lemmy.world
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So I'm quite new to the self hosting world, and not the most tech savvy, but I'm looking for a way to expand and increase the reliability of my file storage. I used to just use cloud storage but got concerned about privacy and environmental impact and whittled down all of my data to about 200GB including all my music, photos, movies, backup files, etc. I have a laptop, phone, and mp3 player and currently use synching to sync all of my files across all three devices. This works great, I love how seamless, cheap, and automatic everything is. But I want to expand my storage abilities and include a backup that isn't with me / in my apartment. I was thinking of getting a couple raspberry pis with m.2 ssds, one to leave at my sisters house (small and unobtrusive little plastic box connected to power and her wifi) and then one at my apartment to act as another node, freeing up space on my phone so that all my files are in at least 3 different devices (3:2:1 rule?). this feels like an fairly easy project to set up, but I have a feeling there is probably a better way to go about what I'm trying to achieve.

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[–] rune@infosec.pub 12 points 1 week ago (2 children)

Don't confuse backups with syncing. Although syncthing has a recycle bin to recover deleted and overwritten files, you shouldn't rely on it for guarding against accidental deletion, file corruption, or ransomware. You want something that will allow you to restore files from a point in time. There's lots of proper backup tools for this. Borg, Restic, etc. Each has pros and cons. Make sure you test recovery. Also 3-2-1 is 3 copies of data, on at least 2 different systems, and 1 off site.

[–] frongt@lemmy.zip 6 points 1 week ago

*2 different types of media. But having an offsite copy is more important; this part of the rule is mostly just about avoiding failures due to stuff hard drives in the same batch failing at the same time. Or a tape drive that has gone bad and destroys tapes when you insert them, because if that's the only format you have you're SOL. If you have another copy on CD then you can use those.

[–] suigenerix@lemmy.world 1 points 1 week ago

Syncthing has multiple file versioning strategies.

https://docs.syncthing.net/users/versioning.html

So it can provide quite solid protection beyond a trash can, but yes, it's still primarily a syncing tool.