Hello! One more newbie question )
I have a minimal working ceph cluster: 3 nodes, 6 OSDs. I understand that I can scale up cluster adding one or more OSDs or even nodes without stopping clients i/o and loosing consistency. What if I decide to add a cache pool backed by SSDs or move a journal to SSD? Should I stop clients i/o before performing operations of this kind? Is there a rule of thumb to determine permitted operations from "online" client's point of view? _______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
