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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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[–] 2 points 8 months ago

Same here, ~30TB currently but my personal artifacts portion is only like 2TB, which is very affordable with rsync.net, which conveniently has an alerts setting if more than X kb hasn't changed in Y days. (I have my Synology set up to spit out daily security reports to meet that amount, so even if I don't change anything myself I won't get bugged)

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