Comment by Dwedit
2 years ago
Hmmm, when I quick-formatted a drive (which TRIMs the whole thing), then tried reading it back in a disk hex editor, I just saw zeroes.
2 years ago
Hmmm, when I quick-formatted a drive (which TRIMs the whole thing), then tried reading it back in a disk hex editor, I just saw zeroes.
It seems like that would be a likely common behavior for the FTL, but other options are possible (e.g., reading the old blocks) and it wasn't guaranteed by the spec, which is why they added this NVMe flag (so-called "DZAT") so that you can actually rely on it.