> 
> And then the disks can be either at hsc0 or uq0, and you can move them
> without problems.
>
So can you do with NetBSD also, since a few years back.
ra0	at mscpbus? drive?
ra1	at mscpbus? drive?
and so on...

> > Yes. NetBSD has already MSCP drivers. But guessing a bus protocol on
> > bais of a device driver is somewhat painful. Also guessing is no good
> > bais for new code.
> 
> True. And also, the NetBSD RA support have some bug in it, along with
> being very much tied to the UDA50/KDA50 right now.
> 
Bugs, probally, but the MSCP code should fit as well for speaking over
CI or DSSI or whatever and not be tied to something special below. That
was one of the reasons that I rewrote much of that code.

-- Ragge