Just hours after Seagate showcased a 60TB SAS solid state drive at the Flash Memory Summit, Samsung announced a 32TB model, the PM1643, one which it claims is the world's largest to be based on 512-gigabit V-NAND chips.The difference is in the form factor (2.5-inch for Samsung and 3.5-inch for Seagate) and the fact that it uses its own 512-gigabit chips,...