Boyanich, Alastair [Alastair.Boyanich at au.fujitsu.com] wrote: Was there ever a UNIBUS DSSI controller or were they all XMI only ... ... don't know about UNIBUS, but there was a QBUS DSSI controller - the KFQSA, M7769. I've got one of those in a uVAX-III. I'd use a UNIBUS one if I had it (I even have some spare RF drives) but otherwise the RA7x/RA9x drives seem easier. Bob