Thanks Sebastien, Let me answer all of your question which i missed out, Let me tell you this is first cluster so i have no idea what would be best or worst here, also you said we don't need SSD Journal for BlueStore but i heard people saying WAL/RockDB required SSD, can you explain? If i have SATA 500GB 7.5k HDD in that case running journal WAL/RockDB on same OSD disk will slowdown right? On Wed, Jul 18, 2018 at 2:42 PM, Sébastien VIGNERON <sebastien.vigneron@xxxxxxxxx> wrote: > Hello, > > What is your expected workload? VMs, primary storage, backup, objects storage, ...? All VMs only ( we are running openstack and all i need HA solution live migration etc) > How many disks do you plan to put in each OSD node? 6 Disk per OSD node ( I have Samsung 850 EVO Pro 500GB & SATA 500GB 7.5k) > How many CPU cores? How many RAM per nodes? 2.9GHz (32 core in /proc/cpuinfo) > Ceph access protocol(s): CephFS, RBD or objects? RBD only > How do you plan to give access to the storage to you client? NFS, SMB, CephFS, ...? Openstack Nova / Cinder > Replicated pools or EC pools? If EC, k and m factors? I didn't thought of it, This is first cluster so don't know what would be best. > What OS (for ceph nodes and clients)? CentOS7.5 (Linux) > > Recommandations: > - For your information, Bluestore is not like Filestore, no need to have journal SSD. It's recommended for Bluestore to use the same disk for both WAL/RocksDB and datas. > - For production, it's recommended to have dedicated MON/MGR nodes. > - You may also need dedicated MDS nodes, depending the CEPH access protocol(s) you choose. > - If you need commercial support afterward, you should see with a Redhat representative. > > Samsung 850 pro is consumer grade, not great. > > >> Le 18 juil. 2018 à 19:16, Satish Patel <satish.txt@xxxxxxxxx> a écrit : >> >> I have decided to setup 5 node Ceph storage and following is my >> inventory, just tell me is it good to start first cluster for average >> load. >> >> 0. Ceph Bluestore >> 1. Journal SSD (Intel DC 3700) >> 2. OSD disk Samsung 850 Pro 500GB >> 3. OSD disk SATA 500GB (7.5k RPMS) >> 4. 2x10G NIC (separate public/cluster with JumboFrame) >> >> Do you thin this combination is good for average load? >> _______________________________________________ >> ceph-users mailing list >> ceph-users@xxxxxxxxxxxxxx >> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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