On Wed, 4 May 2011 01:07:45 +0100 Liam Kurmos <quantum.leaf@xxxxxxxxx> wrote: > Hi, > > I've been testing mdadm (great piece of software btw) however all my > test show that reading from raid1 is only the same speed as reading > from a single drive. Why do you expect RAID1 to be faster? On a single threaded sequential read there is not much it can do to go faster than a single device. Maybe on some multi-thread random IOs it might. What sort of tests were you running? NeilBrown > > Is this a known issue? or is there something seriously wrong with my > system? i have tried v2.8.1 and v.3.2.1 without difference and several > benchmarking methods. > > best regards, > > Liam -- 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