Hello, On Thu, 08 May 2014 06:33:51 +0200 (CEST) Alexandre DERUMIER wrote: > Hi Christian, > > Do you have tried without raid6, to have more osd ? No and that is neither an option nor the reason for any performance issues here. If you re-read my original mail it clearly states that the same fio can achieve 110000 IOPS on that raid and that it is not busy at all during the test. > (how many disks do you have begin the raid6 ?) > 11 per OSD. This will affect the amount of sustainable IOPS of course, but in this test case every last bit should (and does) fit into the caches.
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