Date: Thu, 31 Oct 2002 10:56:15 -0500 (EST) From: Chris BeHanna <behanna@zbzoom.net> To: FreeBSD-SPARC <freebsd-sparc@FreeBSD.org> Subject: Re: sparc64 tinderbox failure Message-ID: <20021031105219.A568-100000@topperwein.pennasoft.com> In-Reply-To: <3DB91D07.2166E0CE@skynet.be>
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On Fri, 25 Oct 2002, Atle wrote:
> Jake Burkholder wrote:
>
> > Search for "sun ultra" on ebay; I got mine from paladintech. Ultra 10s
> > are cheaper but more PC class, my 300mhz does a full buildworld in about
> > 5 hours last time I timed it. Ultra 2 is probably the best value, but
> > we don't support the builtin scsi controller yet.
>
> This is probably half-way OT, but I ask anyway since it would be OT many
> other places as well.
> I know nothing about SCSI controllers, but believe some have a BIOS, but
> most are used by communicating through .
>
> The objective of my question is to figure out if I can make my Ultra 10
> less PC-like by putting in a PCI IDE-RAID acting like a SCSI-card.
>
> I don't want to buy it and get bad surprises, though :-)
>
> If SCSI is supported, and an IDE-RAID card presents a SCSI interface to
> the driver, shouldn't it work?
This is exactly what the Adaptec 2400A does in the PC world. It's
a PCI board, and FreeBSD supports it--it is probed as asr0, but I
don't know if the driver has been ported or can even work in an Ultra
10.
I don't know a damned thing about interrupt handling in the SPARC
world, and only have a high-level understanding in the x86 world. The
lack of a 16-bit IRQ vector should be a distinct advantage in the
SPARC world.
> To someone building a driver for a PCI card, PCI is PCI OpenBoot or not,
> right?
>
> If a driver for an IDE RAID could be made, I think many U10 owners would
> be happy, there is no doubt to me that the IDE is what makes the U10
> PC-like ...
It's only IDE at the disk drive side. At the PCI slot side, it
pretends to be SCSI. Theoretically, a driver for such a board that
worked in an Ultra 10 should also work in any modern box with a PCI
bus.
> With apologies for ignorance, Atle
You're less ignorant than I.
--
Chris BeHanna http://www.pennasoft.com
Principal Consultant
PennaSoft Corporation
chris@pennasoft.com
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