Comment ATA8 std. allows reporting sector size/alignment (Score 1) 207
There is also the ability to "free" unused blocks (with CFA commands at least), maybe so they can be erased in the background, or freed from wear-leveling tracking.
There is a commercial device-mapper plugin to force large physical sectors on devices that still use 512 byte logical sectors. Not much different than md-raid devices whose stripe width or stride is much like a large physical sector.