On Wed, Dec 22, 2010 at 12:35:46PM -0500, Justin Piszcz wrote: > Is this by specifying the sunit/swidth? yes > Can you elaborate on which paramters you modified? i set both to match what the hw raid was doing, the lru that is my brain doesn't have the detail anymore sorry at a guess it was probably something like 64k chunk, 20 devices wide the metadata performance difference between wrong and right is quite noticable > Yes and have it set to perform(ance). be sure you have a bbu, there is a setting for force wc --- i wouldn't do that i would have it wc when the battery is good automatically disable it when it's bad i was able to buffer ~490MB of writes in the card without trying hard, that's a lot of pain to get corrupted > Going to be using 19HDD x 3TB Hiatchi 7200RPMs, (18HDD RAID-6 + 1 > hot spare). are those 4k sector drives? i ask because it's not clear if/how the raid fw deals with these _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
