1    /ALL

    Optional.

    If you also specify device, displays information for all NFS
    server hosts with mounted file systems on this device.

    If you do not specify device, displays information for all NFS
    server hosts with mounted file systems on any device.

    Not valid with /HOST.

2    /FULL

    Optional. Default: Brief description is displayed.

    Displays the full, current operating parameters related to each
    mount.

3    /HOST

       /HOST=host

    Optional. Default: All NFS servers with file systems currently
    mounted.

    NFS server on which the physical files reside.

    Not valid with /ALL.