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123

What do people use for a shelf-stable backup (lemmy.nz)

submitted 3 days ago by Dave@lemmy.nz to c/selfhosted@lemmy.world

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I have backups on a backup hard drive and also synced to B2, but I am thinking about backing up to some format to put in the cupboard.

The issue I see is that if I don't have a catastrophic failure and instead just accidentally delete some files one day while organising and don't realise, at some point the oldest backup state is removed and the files are gone.

The other thing is if I get hit by a bus and no one can work out how to decrypt a backup or whatever.

So I'm thinking of a plain old unencrypted copy of photos etc that anyone could find and use. Bonus points if I can just do a new CD or whatever each year with additions.

I have about 700GB of photos and videos which is the main content I'm concerned about. Do people use DVDs for this or is there something bigger? I am adding 60GB or more each year, would be nice to do one annual addition or something like that.

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[–] TheHolm@aussie.zone 5 points 2 days ago (1 children)

Just a hdd in usb caddy? IMHO good enough for 4 tier backup.

[–] Dave@lemmy.nz 4 points 2 days ago (1 children)

Yes this seems to be the general theme. Main issue is sorting out a file system. I can use a self-repairing one, to recover from long term storage issues, but then it likely won't work in Windows which it may need to if I want a layman to be able to access it. So still some refinement of the plan but it's coming together.

I've also decided to print some physical photos, aiming for 100 per year, and will put everything in a container together. The physical photos are for in case the container is lost for decades and the drives die, then there will at least be something.

[–] TheHolm@aussie.zone 3 points 2 days ago

If you need something which can withstand some bitrot on single drive, just use par2. As long is filesystem is readable, you can recover files even if bit of data get corrupted