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How do you effectively backup your high capacity (20+ TB) local NAS? (lemmy.world)

submitted 3 months ago* (last edited 3 months ago) by NekoKoneko@lemmy.world 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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[–] kurotora@lemmy.world 17 points 3 months ago

In my case, for Linux ISOs, is only needed to login in my usual private trackers and re-download my leeched torrents. For more niche content, like old school TV shows in local language, I would rely in the community. For even more niche content, like tankoubons only available at the time on DD services, I have a specific job but also relying in the same back up provider that I'm using for personal data.

Also, as it's important to remind to everyone, you must encrypt your backup no matter where you store it.