doc/releases: Clarify Quincy CephFS MDS upgrade process

Signed-off-by: Anthony D'Atri <anthonyeleven@users.noreply.github.com>

diff --git a/doc/releases/quincy.rst b/doc/releases/quincy.rst
index 6f8338f9d915148d8a0ad61a7119501dbf5a9e1c..0322a2cf70d300325ac7848247b2407f979ae4bc 100644 (file)
--- a/doc/releases/quincy.rst
+++ b/doc/releases/quincy.rst
@@ -866,10 +866,12 @@ Upgrading non-cephadm clusters
 
 #. Upgrade all CephFS MDS daemons. For each CephFS file system,
 
-   #. Disable standby_replay:
+   #. Disable standby_replay.  Before executing, note the current value
+      so that it may be re-enabled after the upgrade (if currently enabled):
          
       .. prompt:: bash #
 
+        ceph fs get <fs_name> | grep allow_standby_replay
         ceph fs set <fs_name> allow_standby_replay false
 
    #. Reduce the number of ranks to 1.  (Make note of the original
@@ -877,7 +879,7 @@ Upgrading non-cephadm clusters
       
       .. prompt:: bash #
 
-        ceph status
+        ceph fs status
         ceph fs set <fs_name> max_mds 1
 
    #. Wait for the cluster to deactivate any non-zero ranks by
@@ -885,7 +887,7 @@ Upgrading non-cephadm clusters
       
       .. prompt:: bash #
 
-        ceph status
+        ceph fs status
 
    #. Take all standby MDS daemons offline on the appropriate hosts with:
 
@@ -897,7 +899,7 @@ Upgrading non-cephadm clusters
 
       .. prompt:: bash #
 
-        ceph status
+        ceph fs status
 
    #. Upgrade the last remaining MDS daemon by installing the new
       packages and restarting the daemon:
@@ -918,6 +920,13 @@ Upgrading non-cephadm clusters
 
         ceph fs set <fs_name> max_mds <original_max_mds>
 
+    #. Restore the original value of ``allow_standby_replay`` for the volume if
+       it was ``true``:
+
+      .. prompt:: bash #
+
+        ceph fs set <fs_name> allow_standby_replay true
+
 #. Upgrade all radosgw daemons by upgrading packages and restarting
    daemons on all hosts: