this post was submitted on 13 Sep 2023
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Formatting is almost instantaneous, this seems to be overwriting the files for a safe deletion (a.k.a. deleting white space). In any case, it's weird to measure a safe deletion speed as MB/s, as the operation involves multiple overwrites. I'd just format it using gparted if you don't care about deleting the white space.
Yes I am overwriting it with zeroes while formatting (using gnome-disks). I didn't know it did multiple overwrites, thought it did 1 pass overwrite with zeros.
It depends, it might be doing a single pass, but doing several is quite common.
Probably selected secure erase or something which would write a bunch of random and then zero it out.
Super common in the enterprise world, probably overkill for OP.
Why though?