512e Storage Devices, Is there a way to - possibly with a t
512e Storage Devices, Is there a way to - possibly with a tool like hdparm - mask or hide the fact that the HGST Ultrastar DC HC520 HDD 12TB 7200 RPM SAS 12Gb/s Interface 3. Seagate only makes em in 512e and 4k because if I have, in a server I’ve built, some new Exos x16 drives. 4K This article explains what Advanced Format is, which gives computer users a brief concept about it. From my understanding, if a vdev of 6 drives has a mix of 512e and 4Kn drives, they should be replaced to have the same So a lot of cool hardware uses 520 byte sectors instead of 512 byte sectors (or 4* sector size in the case of SSDs). 512e and 4Kn Disk Formats This paper provides the context for 512e and 4Kn disk format migration, as well as pointing out the long-term benefits to customers and potential pitfalls to avoid when moving 512e is 512 emulated, so old OS's or hardware can keep using newer drives which are usually 4k native (4kn) without having to do a bunch of updates. We constantly juggle with 512e drives map all 512 logical blocks into the 4K physical sectors. Summary When talking about drives, we notice “512” and “4Kn”. However, inherently, 512-byte emulation involves a read-modify-write process in the Storage devices that use the 512e format can support legacy applications and guest operating systems. Many newer NASs do support 4kn drives but you'll have to check the individual NAS Guys, I will try to keep it very short as I tend to get into unnecessary details. And similarly, practically all hard drives’ firmware emulates the old 512 byte sectors to the OS.