Library /sys$common/syshlp/tcpip$ucp_help.hlb DISMOUNT, Qualifiers, /ALL  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    Optional.

    Dismounts one of the following:

    o  All file systems from all servers: DISMOUNT /ALL

    o  All file systems on the specified server: DISMOUNT /ALL
       /HOST=host

    o  All file systems on the specified device: DISMOUNT DNFSn: /ALL

    If you dismount using the /ALL qualifier, the dismount operation
    completes even if the server is not currently reachable.