If you're attempting to mount CIFS/Windows storage device for VERDE's clustered environment, you MUST get “a route” established between the Cluster Master and the CIFS storage server before the mount is successful.  What you need to do for both the CM and the CM Candidate is initially define the VERDEOS to not have a separate storage, initiate networking, exit from the VERDEOS menu and from the VERDE server prompt, ping the storage server.  Then, go back to the VERDEOS menu, define the CIFS Mount.  Presto!!  It works.  We had to do it with both the CM and the Candidate.