Mastodawn

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

How do you effectively backup your high capacity (20+ TB) local NAS? - Lemmy.World

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.)

Show thread

Shadow Feb 26

I don’t. Of my 120tb, I only care about the 4tb of personal data and I push that to a cloud backup. The rest can just be downloaded again.

Show thread

NekoKoneko Feb 26

Do you have logs or software that keeps track of what you need to redownload? A big stress for me with that method is remembering or keeping track of what is lost when I and software can’t even see the filesystem anymore.

Show thread

Kurotora

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.