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How much data is retreivable form one disk in a raid 5 array (gregtech.eu)

submitted 3 weeks ago* (last edited 3 weeks ago) by Fortatech@gregtech.eu to c/techsupport@lemmy.world

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If i would, hypothetically, have a few different drives in a raid5 array in different physical locations, and one was seized, how much data could be reconstructed from that drive?

(I was reading about A/I and their R* system a bit, and this semi-related idea came to mind)

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[–] enchanted@lemmy.world 3 points 3 weeks ago (1 children)

It stores large chunks of data the size of the stripe width. This could easily be large enough to contain a whole text file, and enough of binaries to reasonably guess aa to what they are. Encryption may slow down IO, but if you even remotely worry about seizure you should absolutely be using it.

[–] hendrik@palaver.p3x.de 1 points 2 weeks ago* (last edited 2 weeks ago)

Plus we have hardware accelerated AES in most CPUs for like 15 years now?! I encrypt all my devices in case they get stolen or something and since then, I never noticed any noticeable CPU load due to that anymore. Should be the same for storage systems. And if there's spinning disks or SATA inside, you don't even need to worry. That'll slow it down enough and you won't notice the CPU is doing stuff as well.