Le 28/05/2014 16:15, Stefan Priebe - Profihost AG a ?crit : > Am 28.05.2014 16:13, schrieb Wido den Hollander: >> On 05/28/2014 04:11 PM, VELARTIS Philipp D?rhammer wrote: >>> Is someone using btrfs in production? >>> I know people say it?s still not stable. But do we use so many features >>> with ceph? And facebook uses it also in production. Would be a big speed >>> gain. >> As far as I know the main problem is still performance degradation over >> time. On a SSD-only cluster this would be less of a problem since seek >> times on SSDs aren't a really big problem, but on spinning disks they are. >> >> I haven't seen btrfs in production on any Ceph cluster I encountered. > It heavily fragements over time. I just would add that it is inherent to *all* COW based file system, and not specifically to BTRFS ;-) Cheers C?dric > Also no kernel backports are available > to stable kernels. So which one would you choose? > > Stefan > > >>> >>> >>> _______________________________________________ >>> ceph-users mailing list >>> ceph-users at lists.ceph.com >>> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >>> >> > _______________________________________________ > ceph-users mailing list > ceph-users at lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com -- C?dric
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