doc: Document health check DAEMON_OLD_VERSION

Signed-off-by: David Zafman <dzafman@redhat.com>

diff --git a/doc/rados/operations/health-checks.rst b/doc/rados/operations/health-checks.rst
index ba4a4a71597e2c807b8489313eef92f5828934d8..9a133df72b57bff532088f648727d25d6aef22bc 100644 (file)
--- a/doc/rados/operations/health-checks.rst
+++ b/doc/rados/operations/health-checks.rst
@@ -25,6 +25,15 @@ Definitions
 Monitor
 -------
 
+DAEMON_OLD_VERSION
+__________________
+
+Warn if old version(s) of Ceph are running on any deamons.
+This will be an expected warning while in the middle of
+an upgrade. A manual upgrade should health mute like this
+"ceph health mute DAEMON_OLD_VERSION --sticky".  After upgrading has
+finish use ceph health unmute DAEMON_OLD_VERSION".
+
 MON_DOWN
 ________