(DOCSP-45718) Clarify backup daemon set up recommendations. (#601)

[JIRA](https://jira.mongodb.org/browse/DOCSP-45718)
[Staging]()

Author: lmkerbey-mdb

source/tutorial/configure-backup-high-availability.txt

@@ -71,6 +71,15 @@ The following considerations apply to making backups highly available:
     page. For example, for the dedicated queryable Daemon host, you can
     clear all checkboxes except :guilabel:`Queryable Restore Jobs`.
 
+- If you use multiple Backup Daemons, use a distinct local folder
+  for each :setting:`head directory` path.
+
+- We recommend that you use a file system other than |nfs| if you
+  intend to run :ref:`queryable restore
+  <restore-from-queryable-backup>` jobs. For further recommendations
+  regarding filesystems, see the :manual:`MongoDB Operations Checklist
+  <operations-checklist>`.
+
 Additional Information
 ----------------------
 
@@ -88,4 +97,4 @@ Additional Information
   :doc:`/tutorial/move-jobs-to-new-backup-daemon`.
 
 - To make the |application| highly available, see
-  :doc:`/tutorial/configure-application-high-availability`.
+  :doc:`/tutorial/configure-application-high-availability`