![]() ![]() There are two issues:Įven though the low level deals with 512B blocks, most higher level access is typically in 4KB or larger chunks. ![]() For this reason, all AF drives currently on the market work in 512B emulation mode – they allow the OS/BIOS/Firmware to access logical 512B sectors, and the drive translates it to physical 4KB access under the hood. Since many home operating systems and applications have learned to rely on 512B sector sizes, many of them would not support a 4K-drive natively. There are some efficiency advantages to this, which can allow, in the future, higher density and possibly better performance. Generally speaking, an Advanced Format (AF) drive will have 4KB physical sectors, as opposed to 512B physical sectors on a standard/legacy format drive. ![]() Today you are more likely to buy an Advanced Format drive than not. IntroductionĪdvanced Format hard drives have started rolling up in the past couple of years. For working links – please scroll down to the TL DR section. Update: Microsoft and Intel removed the original pages for the relevant Vista KB patches and RST drivers, so I have uploaded the files locally (both 32-bit and 64-bit versions). ![]()
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