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Confused about the Write Zeroes command
(lemmy.blahaj.zone)
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this post was submitted on 19 Oct 2023
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Thanks for the answer! So do I assume correctly then that things like using the 'overwrite data'-option when running BleachBit, or wiping/erasing partitions or disks with zeroes in GNOME Disks or GParted actually does zero the data like normal, even if the quirk is enabled?
It depends how those tools are working at a lower level. Usually it is better to use a security erase feature in the drive itself, or the NVMe format command. Every drive has some sort of implementation.
SSDs have a lot of tricks to increase performance and longevity, things like wear leveling or not actually writing all those zeroes to the NAND, so writing all zeroes may leave a lot of data untouched on the actual drive while the firmware keeps a tally.