RDMA over infiband is all the rage, for folks with deep pockets. RDMA over cephfs is now in ceph.0.94 ; a version bump request has been filed. ceph-0.93 can be found here (overlay) [1] "xmw" /var/lib/layman/xmw
Some excellent reading, including how to rapidly deploy a cephfs (3) node test cluster, can be found here: http://marc.info/?l=ceph-devel&m=142844009930093&w=2 http://ceph.com/docs/master/start/quick-ceph-deploy/#add-an-rgw-instance mesos + cephfs yields a very fast, FOSS cluster for gentoo, and it's ripe for testing by the adventuresome. Happy clustering! James