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Comment by pmlnr | Hacker News Reader

I have a home server, which is then mirrored to a rented server. Anything critical and entirely irreplaceable goes onto blu-ray disks, because I can't accidentally delete those; though those are kept at home as well, which is not ideal.

So: 2 backups, from which one is off-site and archives, just in case - this should keep you going for a while with self storage.

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>Anything critical and entirely irreplaceable goes onto blu-ray disks, because I can't accidentally delete those

There's bit-rot though: https://en.wikipedia.org/wiki/Data_degradation#Decay_of_stor...

I'm aware of that too well; blu-ray, however, is slightly better than the predecessors: even the current, non-archival grade single layer Panasonics should - according to some accelerated tests - last 5-10 years. Now, looking at the current ideas from Sony[1], within 8-10 years every data I ever had will need 1 disk, so I'm not worried.

[1]: http://www.computerworld.com/article/3057889/data-storage/so...

Blu-ray? Really? Sure, they may last, but, will you have a blu-ray reader?

I've worked in IT for over ten years, and have not once, once seen a blu ray in person, or ever handled a machine capable of reading one. It'd be incredible afraid to have my backups in something that requires some expensive exotic device to be written/read.

You'd be much better off with USB sticks.

Check out M-Disc, most new drives, especially from LG, support burning them: http://www.mdisc.com/

They claim the discs should last 1,000 years. Obviously no-one has tested this.

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