On Tue, 27 Apr 2010 10:18:36 -0700 Joe Williams <jwilliams315@xxxxxxxxx> wrote: > On Mon, Apr 26, 2010 at 11:41 PM, Neil Brown <neilb@xxxxxxx> wrote: > > On Sat, 24 Apr 2010 16:36:20 -0700 Joe Williams <jwilliams315@xxxxxxxxx> wrote: > > > > The whole 'queue' directory really shouldn't appear for md devices but for > > some very boring reasons it does. > > But read_ahead for md0 is in the queue directory: > > /sys/block/md0/queue/read_ahead_kb True - but it shouldn't be. read_ahead has nothing to do with the queue. /sys/block/md0/bdi/read_ahead_kb is (in my mind) the more natural way to access that information. Actually it should be /sys/class/block/md0/bdi/read_ahead_kb but that is a little off-topic. > > I know you said read_ahead is irrelevant for the individual disk > devices like sdb, but I thought it was implied the read_ahead for md0 > is significant. > NeilBrown -- 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
