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Combine with badblocks with cryptsetup? #23

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ypid opened this issue Dec 22, 2021 · 0 comments

ypid commented Dec 22, 2021

Pro:

The drive might "compress" the pattern that is written to it. So combining with cryptsetup ensures that the drive actually stored every single bit correctly and did not just compress it.
As preparation to encrypt the drive, it is recommended to overwrite the secure random before which will be done while testing the drive. Win-win.

Contra:

A bit higher CPU usage. But with AES-NI, this should be acceptable.

I have been doing this for years without issues btw, ref: https://github.com/ypid/scripts/blob/master/badblocks_and_secure_erase

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