Date: Tue, 15 Feb 2000 23:39:39 +0100 From: Wilko Bulte <wilko@yedi.iaf.nl> To: David Scheidt <dscheidt@enteract.com> Cc: Banu Ozden <ozden@research.bell-labs.com>, freebsd-hackers@FreeBSD.ORG Subject: Re: scsi target mode Message-ID: <20000215233939.A6080@yedi.iaf.nl> In-Reply-To: <Pine.NEB.3.96.1000215155542.2109A-100000@shell-1.enteract.com>; from dscheidt@enteract.com on Tue, Feb 15, 2000 at 04:00:28PM -0600 References: <20000215194322.B597@yedi.iaf.nl> <Pine.NEB.3.96.1000215155542.2109A-100000@shell-1.enteract.com>
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On Tue, Feb 15, 2000 at 04:00:28PM -0600, David Scheidt wrote:
> On Tue, 15 Feb 2000, Wilko Bulte wrote:
>
> > On Tue, Feb 15, 2000 at 11:39:24AM -0600, David Scheidt wrote:
> >
> > Maybe you can find Y-cables from DEC/Compaq. Or something we call a trilink,
> > which has 2 female and 1 male connector. We tend to use trilinks on raid
> > controllers.
>
> HP sells them, which means that you can get them from someone else for 1/3
> the money. I haven't got one to get a part number off of, though.
Our VHDCI trilinks come from Amphenol I think. The HD68 variants I don't
know.
> > Generally speaking 'joining' machines into cluster(like) you want to
> > use differential SCSI buses.
>
> Yes. Of course, I think that you want to use differential SCSI for
> everything. Cableing is much easier, and much less fussy. It costs more
> though.
And consumes a bit more power due to all the external diff xceiver chips.
For in-cabinet single-ended or LVD works just fine.
--
Wilko Bulte Arnhem, The Netherlands
WWW : http://www.tcja.nl
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