RAID is not a backup: the 3-2-1 rule, honestly (chartmann1590.github.io)

submitted 1 week ago by homelabtherightway@lemmy.world to c/homelab@lemmy.ml

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What actually counts as a copy under the 3-2-1 rule, why a RAID mirror or a snapshot only protects against one kind of failure, and the one-page inventory that exposes the gaps.

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Disclosure: this is my own article (Charles Hartmann, Homelab the Right Way). Written with AI help and edited by me; the setup described is mine.

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[-] TropicalDingdong@lemmy.world 1 points 6 days ago

Problem I have is so much of my data is "projects" where like, only god and my client know what random shit they'll ask for.

[-] homelabtherightway@lemmy.world 1 points 1 day ago* (last edited 1 day ago)

That's the hard case. When you can't predict what a client will ask for, backing up the whole project folder is simpler than trying to pick files, and moving finished projects to an archive keeps the active set small.

this post was submitted on 22 Oct 2026

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