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Christopher Lemmer Webber @cwebber

dd'ing old drives (the ones that I didn't smash up)

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a very bad joke Show more

@cwebber i had a bunch of 4TB drives that had been purchased with the intent of setting up storage on #ceph, but that project was going slow. i borrowed one drive to stash some stuff on for a bit, and the drive crashed on me like 4 months in. this is a supposedly good wd red nas pro.

that was one of the few times i have committed to violence. that was such a miserable experience of failure, i felt so betrayed. it was definitely under warranty but priced has dropped a bunch by then so 🔨.

@cwebber
You shouldn't fill the drives with plain zeros (that doesn't really destroy the information), but with random bits, e.g. using symmetrically encrypted zeros.
Or use `shred`.

@amiloradovsky Yeah I've used the dd while luks-encrypting over a temporary luks volume which works pretty well

I use "dd"'ing pretty generally as a verb though

@amiloradovsky @cwebber for the normal user, 0s is enough right? You need special tools to read what was there before the 0s, right?

@abc
Yes, you need some electronic equipment to read the plates' weak/residual magnetic properties. — That's not something you can do using just the standard HDD interfaces (buses & protocols). It's one of those hardcore infosec tricks.
@cwebber