Why only 4K? Seeing the speed at which disk sizes grow, they should define
a 64K block size already. Even if it's not used in the beginning, that
should make it clear to software developers that it's time to rethink
interfaces. 64k blocks are used in RAIDs since years, and would only be a
natural thing to do in hardware. Maybe not now, but in 5 years, when there
are 12TB hard disks, we might be happy about it. Especially as size grows
quicker than speed of disks.
I always wondered why bigger sectors have never been used, where "always"
is the time when the 2K sector CD-Roms arrived. That's like "forever" in IT