datahoarder
Who are we?
We are digital librarians. Among us are represented the various reasons to keep data -- legal requirements, competitive requirements, uncertainty of permanence of cloud services, distaste for transmitting your data externally (e.g. government or corporate espionage), cultural and familial archivists, internet collapse preppers, and people who do it themselves so they're sure it's done right. Everyone has their reasons for curating the data they have decided to keep (either forever or For A Damn Long Time). Along the way we have sought out like-minded individuals to exchange strategies, war stories, and cautionary tales of failures.
We are one. We are legion. And we're trying really hard not to forget.
-- 5-4-3-2-1-bang from this thread
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If you're done with them, then move them onto a backup disk rather than keep them live and have a backup?
I've been doing this for a long time. I move files locally to a "To-Archive" directory and once in a while, move them to several disks based on content. Films, tv, apps, games, books - that sort of thing.
Once one disk is full, I use another old hdd in a disk caddy and label it "Books #2" and so on.
I use a windows program called Cathy which indexes the files, making it easy to locate a file on whatever disk it's on. Looks like there's a linux version available too
This works okay for me, and gives a use for old spinny hard drives. It's not infallible, but for stuff that I could replace (ie, I downloaded it) then I consider it an acceptable risk. All media has a risk of becoming unreadable, but do be realistic about how much bother it would be to replace stuff.
For data that's unique (ie, I made it, plus OS backups) then I use an offline grandfather/father/son rotation once a month and once a year turn the oldest into an annual backup. (Fully explanation of my setup is here if you're interested.