Re: SDI Disks

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Technically RF drives are DSSI and RA drives are SDI.

On Sun, May 3, 2026 at 11:32=E2=80=AFAM Johnny Billquist <[email protected]> w=
rote:

> On 2026-05-03 16:44, Andrew Ball wrote:
> > I'm trying NetBSD/vax 11.0 RC3 on an emulated MicroVAX 3800.  It seems
> > to work but I notice that ra0 and ra1 are reported as the wrong type
> > of drive (RF31 instead of RF35). Thanks to mscp the sector counts look
> > good and NetBSD boots and seems to run without issue.
> >
> > -Andrew
> >
> >
> >  From dmesg:-
> >
> > ra0 at mscpbus0 drive 0: RF31
> > ra1 at mscpbus0 drive 1: RF31
> > ra2 at mscpbus0 drive 2: RF31
> > ra0: size 1664628 sectors
> > ra1: size 1664628 sectors
> > ra2: size 744400 sectors
>
> The names are basically just strings returned from the simulator. They
> have no relevance beyond being just a string that you can print out.
>
> Size/capacity similarly is reported as what the actual capacity is,
> without any regards to names.
>
> So this is all just cosmetic, and it's a thing that you need to fix in
> the simulator if you want it to say something else.
>
> And really, any disk could just report whatever name. It's just a string
> that consists of 1-3 letters and a number between 0 and 127.
>
>    Johnny
>
> --
> Johnny Billquist                  || "I'm on a bus
>                                    ||  on a psychedelic trip
> email: [email protected]             ||  Reading murder books
> pdp is alive!                     ||  tryin' to stay hip" - B. Idol
>
>

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Michael Thompson

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<div dir=3D"ltr">Technically RF drives are DSSI and RA drives are SDI.</div=
><br><div class=3D"gmail_quote gmail_quote_container"><div dir=3D"ltr" clas=
s=3D"gmail_attr">On Sun, May 3, 2026 at 11:32=E2=80=AFAM Johnny Billquist &=
lt;<a href=3D"mailto:[email protected]">[email protected]</a>&gt; wrote:<br></div=
><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border=
-left:1px solid rgb(204,204,204);padding-left:1ex">On 2026-05-03 16:44, And=
rew Ball wrote:<br>
&gt; I&#39;m trying NetBSD/vax 11.0 RC3 on an emulated MicroVAX 3800.=C2=A0=
 It seems<br>
&gt; to work but I notice that ra0 and ra1 are reported as the wrong type<b=
r>
&gt; of drive (RF31 instead of RF35). Thanks to mscp the sector counts look=
<br>
&gt; good and NetBSD boots and seems to run without issue.<br>
&gt; <br>
&gt; -Andrew<br>
&gt; <br>
&gt; <br>
&gt;=C2=A0 From dmesg:-<br>
&gt; <br>
&gt; ra0 at mscpbus0 drive 0: RF31<br>
&gt; ra1 at mscpbus0 drive 1: RF31<br>
&gt; ra2 at mscpbus0 drive 2: RF31<br>
&gt; ra0: size 1664628 sectors<br>
&gt; ra1: size 1664628 sectors<br>
&gt; ra2: size 744400 sectors<br>
<br>
The names are basically just strings returned from the simulator. They <br>
have no relevance beyond being just a string that you can print out.<br>
<br>
Size/capacity similarly is reported as what the actual capacity is, <br>
without any regards to names.<br>
<br>
So this is all just cosmetic, and it&#39;s a thing that you need to fix in =
<br>
the simulator if you want it to say something else.<br>
<br>
And really, any disk could just report whatever name. It&#39;s just a strin=
g <br>
that consists of 1-3 letters and a number between 0 and 127.<br>
<br>
=C2=A0 =C2=A0Johnny<br>
<br>
-- <br>
Johnny Billquist=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 || &quot;I&#39;m on a bus<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0||=C2=A0 on a psychedel=
ic trip<br>
email: <a href=3D"mailto:[email protected]" target=3D"_blank">[email protected]</=
a>=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0||=C2=A0 Reading murder b=
ooks<br>
pdp is alive!=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
 =C2=A0 =C2=A0||=C2=A0 tryin&#39; to stay hip&quot; - B. Idol<br>
<br>
</blockquote></div><div><br clear=3D"all"></div><div><br></div><span class=
=3D"gmail_signature_prefix">-- </span><br><div dir=3D"ltr" class=3D"gmail_s=
ignature">Michael Thompson</div>

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