Hi , you should definitely increase the speed of the network. 100Mbit/s is way too slow for all use cases I could think of, as it results in a maximum data transfer of less than 10 Mbyte per second, which is slower than a usb 2.0 thumb drive. Best, Karsten 2015-05-26 15:53 GMT+02:00 lixuehui555 at 126.com <lixuehui555 at 126.com>: > > Hi ALL: > I've built a ceph0.8 cluster including 2 nodes ,which contains 5 > osds(ssd) each , with 100MB/s network . Testing a rbd device with default > configuration ,the result is no ideal.To got better performance ,except the > capability of random r/w of SSD, which should to give a change? > > 2 nodes 5 osds(SSD) *2 , 1 mon, 32GB RAM > 100MB/S network > and now the whole iops is just 500 . Should we change the filestore or > journal part ? Thanks for any help! > > ________________________________ > lixuehui555 at 126.com > > _______________________________________________ > ceph-users mailing list > ceph-users at lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >