On my system, iostat only reports since re-boot. Not since last run of iostat. I use "sar -d" for current speeds. In the past, sar has agreed with /dev/mdstat.
run iostat 5 and it will report since last reboot on the first itteration, then from then on it only reports since the last itteration and will update every 5 seconds. Same as vmstat does.
Regards, Brad - 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
