We had the Cinder services running on our controllers initially, but split them off to a separate set of (virtual) machines in order to allow for independent upgrades. Performance-wise that should not make a big difference, unless you expect an enormous amount of requests. Nothing needs to be installed on the Ceph side. HTH, Arne On 08 Dec 2015, at 09:26, Ignazio Cassano <ignaziocassano at gmail.com<mailto:ignaziocassano at gmail.com>> wrote: Hi all, I am going to install openstack liberty and I already installed two ceph nodes . Now I need to know where cinder components must be installed. In an nfs scenario I installed some cinder componens on controller node and some on nfs server but with ceph I would like to avoid installing cinder components directly on ceph nodes. Any suggestions ? My controller environment is made up of a cluster of physical nodes. Computing is made up of two kvm nodes. Must I install cinder-api, cinder-scheduler, cinder-volume and cinder backup on controller nodes or for best performace it' s more convenient to split them on different nodes ? Another question is related to object storage : is ceph radosgw supported to replace swift ? Regards _______________________________________________ OpenStack-operators mailing list OpenStack-operators at lists.openstack.org<mailto:OpenStack-operators at lists.openstack.org> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators -- Arne Wiebalck CERN IT -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-operators/attachments/20151209/283d9636/attachment.html>