search for: 512e_4kn_disk_formats_120413

...om writes that are smaller than 4k or if the writes are not a multiple of 4k. Also it's probably not a good idea to mix 512e with 512n in a raid set. Although this may be hard to avoid as drives fail in the future. [1] http://i.dell.com/sites/doccontent/shared-content/data-sheets/en/Documents/512e_4Kn_Disk_Formats_120413.pdf

Still have good quality older sata hardware raid cards that require 512 bytes/sector. As far as I know HD manufacturers are not making native 512 bytes/sector drives any more. Some have better 512e emulation than others. Looking for some advice on which to avoid and which are recommended. Thanks. PS this is for a CentOS6 server.