On Fri, Jul 23, 2010 at 05:42:59AM -0500, Stan Hoeppner wrote: > FWIW, for comparison, my 500GB Blue series WD5000AAKS-00V1A0 shows > > logical_block_size 512 > physical_block_size 512 > alignment_offset 0 Which means there is absolutely no visible 4k sector support.