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How do you effectively backup your high capacity (20+ TB) local NAS? (lemmy.world)
submitted 8 months ago by to c/selfhosted@lemmy.world
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I have a 56 TB local Unraid NAS that is parity protected against single drive failure, and while I think a single drive failing and being parity recovered covers data loss 95% of the time, I'm always concerned about two drives failing or a site-/system-wide disaster that takes out the whole NAS.

For other larger local hosters who are smarter and more prepared, what do you do? Do you sync it off site? How do you deal with cost and bandwidth needs if so? What other backup strategies do you use?

(Sorry if this standard scenario has been discussed - searching didn't turn up anything.)

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[–] 3 points 8 months ago* (last edited 8 months ago)

That is old-old-school. It works tho. You have to be a bit scheduled about it, to encompass current and future important data. IIRC AWS created a 100 petabyte drive and a truck to haul it around to basically do the same thiing, just in much larger amounts.

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