FDRSOS - unmap dev from FICON director

Hi,

   Can someone please help here on how to un-map thick or thin device from EF director.

Say symdev is 0E18 and is mapped to:

Front Director Paths (8):

            {

            ------------------------------------

              DIRECTOR   PORT             LUN

            ------------ ---- -------- ---------

            Type Num     Sts  VBUS TID SYMM Host

            ------------------------------------

            EF   07G:000 N/A  000  00  250  N/A

            EF   07G:001 N/A  000  00  250  N/A

            EF   08G:000 N/A  000  00  250  N/A

            EF   08G:001 N/A  000  00  250  N/A

            EF   09G:000 N/A  000  00  250  N/A

            EF   09G:001 N/A  000  00  250  N/A

            EF   10G:000 N/A  000  00  250  N/A

            EF   10G:001 N/A  000  00  250  N/A

            }

SSID is 9002

This cmd fails:

symconfigure -sid 2411 -v -cmd "unmap dev 0E18 from dir 7g:0, starting  base_address=250,mvs_ssid=9002;" preview -noprompt

Thanks a lot in advance.