Hello, I have a clone PDP11, including an SMS QBUS board and a 8" drive. Not sure if it's the same model as yours. The controller runs MSCP for floppy with RX02 or IBM format , and for an MFM hard disk like Seagate ST251. Board code is SMS FWD0106. I should have some manual and drivers for it somewhere, if you manage to find the board, but utilities like formatter aren't for VAX, IIRC.
Andrea