I have used the examples on the website to make fast, slow, and mixed pools. What I'd like to be able to do, but which I fear may not be possible, is to have a mixed storage rule such that:
primary copy goes to fast disk secondary copies go to slow disk primary and secondary are never on the same host, even if the host has fast and slow OSDs defined. My initial cut basically just added secondary root and duplicate(with addition of "slow") hostnames and the OSD was assigned to one or the other of the hosts. This removes the ability of the selector tell that the primary and copy are on the same host, however. Any ideas? Do I need to wait for the more complex crush behavior promised down the line? -Mandell _______________________________________________ ceph-users mailing list [email protected] http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
