Feature #2939
Updated by Anonymous over 11 years ago
Expanding the cluster is pretty trivial, and practically identical with initial install, but shrinking needs a little bit more care.
If I want to remove physical server node1234, what OSDs do I "ceph osd rm"?
Something should probably run on node1234 to bring the relevant disk back to "prepared" state, so it doesn't keep trying to talk to the cluster? Something like ceph-disk-VERB_HERE that stops the daemons, re-prepares the disk? Would that command also talk to ceph-mon to do the "ceph osd rm"?
Note that in actual usage, admins will probably want to step the crush weight slowly to 0 first.