VAX 4000-300 and a CQD-423 Qbus SCSI adapter questions

I am trying to understand why a CMD CQD-423 qbus scsi adapter in my VAX4000-300 is functioning in this manner. I think it's configured properly as I can see the drives once VMS is booted, sysgen verifies the proper driver is loaded. I can mount the drives as a DUAn device. Yet from the console prompt I cannot see the drives and cannot boot from the attached SCSI drives. My goal was to retire the ancient DSSI drives on this system before they all fail, move OS and data to the SCSI drives and use SCSI as a primary OS and data drives. I have the manual, read it several times and seem to have missed something. Can this controller be used to boot from? I would think so which leads me to believe, my reading comprehension may be a stake here. Any suggestions? Dan Snyder Butler, PA