News for hackers. Stuff that matters.

A comment on NVMe is not a hard disk. Parent comment

Re:NVMe is not a hard disk by robocat on Friday June 11, 2021 @06:48PM (#27479457)
No. Say a particular model of SSD has over-provisioning of 10%, then even after writing the "whole" capacity of the drive, you can still be left with up to 10% of data recoverable from the Flash chips.
[ Parent | on HN ]
Re:NVMe is not a hard disk by effie on Saturday June 12, 2021 @06:35AM (#27483417)
Right, so one better write 2x or 10x drive capacity of random data to it.
[ Parent | on HN ]
Re:NVMe is not a hard disk by isotopp on Monday June 14, 2021 @03:33AM (#27500220)
You should be running flash with self-encryption (and make sure you have a drive that implements that correctly).

To zap a drive you ask it to securely drop the self-encryption key. The data will still be there, but without the key it is indistinguishable from random noise.

[ Parent | on HN ]
Re:NVMe is not a hard disk by effie on Tuesday June 15, 2021 @05:51PM (#27521968)
Well who has time and energy to verify that. Just overwrite it several times, or destroy the drive.
[ Parent | on HN ]