Adds "mds fail 0" command to operations commmand reference.

Partially fixes #2206, though better documentation will eventually be needed.

diff --git a/doc/rados/operations/control.rst b/doc/rados/operations/control.rst
index caeab6b9b876581da9c5cbc3c0fdb790734074b2..ecdea6d8cc61eb27e8e56d47a27e57d24ded7ecd 100644 (file)
--- a/doc/rados/operations/control.rst
+++ b/doc/rados/operations/control.rst
@@ -297,6 +297,10 @@ Enables debug messages. ::
 
 Displays the status of all metadata servers.
 
+       ceph mds fail 0
+
+Marks the active MDS as failed, triggering failover to a stadnby if present.
+
 .. todo:: ``ceph mds`` subcommands missing docs: set_max_mds, dump, getmap, stop, setmap