Hi. How can I find out which is the parity disk in a RAID-4 soft array? I couldn't find that in the mdadm manual. I know that RAID-4 features a dedicated parity disk that is usually the bottleneck of the array, so that disk must be as fast as possible. It seems useful to employ a few slow disks with a relatively fast disk in such a RAID-4 array.
Best regards, Bushkov E.