Update modules/ROOT/pages/clustering/servers.adoc

Author: NataliaIvakina

modules/ROOT/pages/clustering/servers.adoc

@@ -463,7 +463,7 @@ As with the `DEALLOCATE DATABASES FROM SERVER ...` command, if the alteration of
 ====
 Input provided to `SET OPTIONS {...}` replaces **all** existing options, rather than being combined with them.
 
-Any previously set values must be specified every time you run the `ALTER SERVER` command; otherwise they will be overwritten to defaults.
+Any previously set values must be specified every time you run the `ALTER SERVER` command; otherwise they will be overwritten to defaults taken from the settings `initial.server.mode_constraint`, `initial.server.allowed_databases`, `initial.server.denied_databases`, and/or `initial.server.tags`.
 
 For instance, first you run the statement: