Franck Routier wrote:
I am under the impression that I will get better results with requests spread over 3 less effective arrays rather than two slightly more effive one.
Depends on your workload. If you use a larger chunk size, regardless of raid layout, you can try to get each db transaction to only hit one spindle. Seek time being a limiting factor, this may scale better when you have dozens of simultaneous requests.
-- Brendan Conoboy / Red Hat, Inc. / blc@xxxxxxxxxx -- 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