doc: add missing note about restoring allow_standby_replay

Fixes: https://tracker.ceph.com/issues/51187
Signed-off-by: Patrick Donnelly <pdonnell@redhat.com>

diff --git a/doc/cephfs/upgrading.rst b/doc/cephfs/upgrading.rst
index 3966079d364cfb4eac452647ed32cefcc8bb9863..e9df8c0c74300738ef751caaf2c24d680ff85a46 100644 (file)
--- a/doc/cephfs/upgrading.rst
+++ b/doc/cephfs/upgrading.rst
@@ -71,6 +71,12 @@ command. Older versions of Ceph require you to stop these daemons manually.
 
     ceph fs set <fs_name> max_mds <old_max_mds>
 
+9. Restore setting for ``allow_standby_replay`` (if applicable):
+
+::
+
+    ceph fs set <fs_name> allow_standby_replay true
+
 
 Upgrading pre-Firefly file systems past Jewel
 =============================================