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

       /WAIT
       /NOWAIT

    Optional. Default: /NOWAIT.

    o  /WAIT

       -  Does not dismount the mounted file system if outstanding
          activities exist.

       -  Waits until the dismount has been completed.

       -  If you try to access any files on the mount point, the
          dismount fails.

    o  /NOWAIT

       -  The client completes the command immediately.

       -  Dismounting does not actually occur until all file activity
          has completed.