doc: document balancer configurable "update_pg_upmap_activity"

Signed-off-by: Laura Flores <lflores@ibm.com>
(cherry picked from commit c4274c0c3a608eeb0b1183c8a96ef3a314bf797c)

diff --git a/doc/rados/operations/balancer.rst b/doc/rados/operations/balancer.rst
index 949ff17c24abe0ff06bf82fbfbb001445ff4de4d..a0189f06dc9acb49c992f33b98b724df279f4de5 100644 (file)
--- a/doc/rados/operations/balancer.rst
+++ b/doc/rados/operations/balancer.rst
@@ -247,6 +247,18 @@ To see the status in greater detail, run the following command:
 
       ceph balancer status detail
 
+To enable `ceph balancer status detail`, run the following command:
+
+   .. prompt:: bash $
+
+      ceph config set mgr mgr/balancer/update_pg_upmap_activity True
+
+To disable `ceph balancer status detail`, run the following command:
+
+   .. prompt:: bash $
+
+      ceph config set mgr mgr/balancer/update_pg_upmap_activity False
+
 To evaluate the distribution that would result from executing a specific plan,
 run the following command: