mount_point

    Required (if you omit logical_name and the /ALL qualifier).
    Default: None.

    DNFS device (and optional directory tree) required to dismount.
    Specify this mount point as one of the following:

     DNFSn:
     DNFSn:[dir.subdir]
     DNFSn:[dir.subdir]file

    where:

    n        Value from 1 to 9999.

    [dir]    Directory to mount
    or       (up to eight in addition to the [000000] directory).
    [dir.subdir]

    file     Individual file to dismount.

    If you use the /ALL qualifier, you must specify DNFSn: without
    the directory tree.

 logical_name

    Required (if you omit mount_point and the /ALL qualifier).
    Default: None.

    Logical name that you defined with the MOUNT command of the
    device to dismount.