The MDS will run in 1GB, but the more RAM it has the more of the metadata you can cache in memory. The faster single-threaded performance your CPU has, the more metadata IOPS you'll get. We haven't done much work characterizing it, though. -Greg On Wed, Apr 22, 2015 at 5:39 PM Francois Lafont <flafdiv...@free.fr> wrote:
> Hi Cephers, :) > > I would like to know if there are some rules to estimate (approximatively) > the need of CPU and RAM for: > > 1. a radosgw server (for instance with Hammer and civetweb). > 2. a mds server > > If I am not mistaken, for these 2 types of server, there is no need > concerning the storage. > > For a mds server, I wonder if this page is udpated: > > > http://ceph.com/docs/master/start/hardware-recommendations/#minimum-hardware-recommendations > > 1GB per mds daemon seems to me very few. > > Thanks for your help. > > -- > François Lafont > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >
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