Stopping w/out Rebalancing
==========================
-If the problem with your cluster requires you to bring down a failure domain
-(e.g., a rack) for maintenance and you do not want CRUSH to automatically
-rebalance the cluster as you stop OSDs for maintenance, set the cluster to
-``nodown`` first::
+Periodically, you may need to perform maintenance on a subset of your cluster,
+or resolve a problem that affects a failure domain (e.g., a rack). If you do not
+want CRUSH to automatically rebalance the cluster as you stop OSDs for
+maintenance, set the cluster to ``noout`` first::
- ceph osd set nodown
+ ceph osd set noout
-Once the cluster is set to ``nodown``, you can begin stopping the OSDs within the
+Once the cluster is set to ``noout``, you can begin stopping the OSDs within the
failure domain that requires maintenance work. ::
ceph osd stop osd.{num}
ceph osd start osd.{num}
-Finally, you must unset the cluster from ``nodown``. ::
+Finally, you must unset the cluster from ``noout``. ::
- ceph osd unset nodown
+ ceph osd unset noout