> You now have persistent write cache. Did you test with XFS barriers > disabled? If not you should. You'll likely see a decent, possibly > outstanding, performance improvement with your huge metadata > modification workload, as XFS will no longer flush the cache frequently > when writing to the journal log. I've already done that test with the previous controller. It had a BBWC, so it was persistent as well. And it was easy to enable or disable it. Yes, everything was always done with barrier=0. And yes, the cache made a big difference (about 3x). _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs