On 4/13/12, m.roth at 5-cent.us <m.roth at 5-cent.us> wrote: > Wonder if it's trying to beat the rush - after weeks of googling, a few > weeks ago, I finally found that if I formatted my 3TB drives on a 4k > boundry, instead of a 512byte boundry, writes were literally about four > times faster, because that's the physical sector on the drives. > > It may be trying to do the same, to take care of this invisibly. That is what I think the 2K first sector is supposed to do, align the physical sector be it a 512 or 4K drive. But unfortunately, the check for "is this a 4K HDD" appears to be naive.