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Raidz2 or btrfs for important document storage? (piefed.blahaj.zone)
submitted 20 hours ago* (last edited 10 hours ago) by CorrectAlias@piefed.blahaj.zone to c/selfhosted@lemmy.world
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I currently have a secondary pool (with raidz2) that I was originally going to use for my important documents, such as storage for Paperless-ngx, as raidz offers corruption detection and repair. The pool is encrypted.

However, I'm concerned about rebuild times (it's a pool of 4 22TB drives). Is btrfs a better choice for this use case, or should I just go with raidz like I originally planned?

Edit: I should have mentioned that I already have 4-3-2 backups configured - I'm primarily interested in the "self-healing" aspect of ZFS so that I don't have to recover from backups unless necessary, and to resolve corruption on the fly without me having to notice that a file is corrupt.

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[-] CorrectAlias@piefed.blahaj.zone 1 points 10 hours ago* (last edited 10 hours ago)

I'm very aware and have full 4-3-2 backups already. I'm also not interested in a standard raid. Thanks though! It's always good to mention that raid is not a backup. I simply want to add more protection from disk corruption (not necessarily full failure) so that I don't need to recover from backups unless I absolutely must. A benefit would also be resolving corruption before I even notice it.

this post was submitted on 25 May 2026
26 points (93.3% liked)

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