On Jan 7, 2013, at 11:59 PM, Ross Boylan <ross@xxxxxxxxxxxxxxxx> wrote: >> > Isn't it possible there's a hardware problem, e.g., leading to a > failure/retry cycle? smartctl -a /dev/sda smartctl -a /dev/sdb smartctl -a /dev/sdc Compare them. If there was a write failure reported by the drive, md would have marked the device faulty. Chris Murphy-- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html