Re: devfs

Richard Gooch (rgooch@atnf.CSIRO.AU)
Mon, 12 Jan 1998 08:10:32 +1100

Mitch Adair writes:
> >
> > On Sun, 11 Jan 1998, Richard Gooch wrote:
> > > > This allows then to stay compatible with their naming sheme but has the
> > > > drawback of dropping support for LUNs. This only works properly for the
> > > > special case of the SSAs since you only have disk drives in them.
> > > >
> > > > However I do not think that we should make the same mistake as them
> > > > and cut ourselves off from supporting multi LUN devices.
> > >
> > > Agreed! Considering this, I'm open to alternative naming schemes, but
> > > only if they preserve the information.
> >
> > The easiest would be to add a field so that it looks like the following:
> >
> > cCbBtTdDsS
> >
> > <C> == controller
> > <B> == bus/channel on controller
> > <T> == target (ID)
> > <D> == LUN
> > <S> == slice/partition
> >
> Yes, *please* use this layout. Those of us who've been dainbramaged by
> our exposure to Solaris would really appreciate it, I think. :)

So how about my original scheme:

sd_hHcCiIlLpP

<H> -> host controller
<C> -> SCSI channel/bus
<I> -> SCSI target ID
<L> -> LUN
<P> -> partition

> I think devfs is a great idea, good work.

Thanks.

Regards,

Richard....