I was lucky to get a second MDFS not long after I bought my main one. Originally the four boxes were configured as the MDFS main unit, two expansion boxes each containing a single Winchester disc and a third expansion box containing a tape drive.
I felt that the two half-empty expansion boxes were a bit of a waste so I put the two drives in one box and added two new hard discs to the empty box.
My second MDFS lives in the same room as my main MDFS but it does not get as much use. It can be connected up to the same Econet as the main MDFS so I have given my second MDFS a station number of 235 to avoid any confusion with the main one which is the standard file server number of 254.
Please click on the picture links above to learn more about my second MDFS.