[2221] in linux-scsi channel archive
Re: NCR 53C875
daemon@ATHENA.MIT.EDU (Gerard Roudier)
Thu Jul 31 17:04:48 1997
Date: Thu, 31 Jul 1997 22:33:07 +0200 (MET DST)
From: Gerard Roudier <groudier@club-internet.fr>
To: Myles Uyema <myles@puck.nether.net>
cc: linux-scsi@vger.rutgers.edu
In-Reply-To: <19970731100043.22690@uyema.nws.net>
On Thu, 31 Jul 1997, Myles Uyema wrote:
> I'm shopping around for a decent but cheap SCSI controller.
Excellent, very fast, well supported under Linux and cheap is also
possible.
> I happened to see an advertisement in Linux Journal by PromoX Systems.
> http://www.promox.com/
>
> They are selling an NCR 53C875 controller for $123.00 currently.
> I inquired about this, and the sales support replied that it was
> a SCSI-II card, INSTEAD of SCSI-III like Buslogic KT-958 or AHA2940UW.
This sales support would be indeed a bad technical support.
Here is a line I used to look at for 1 second, each time I boot my system:
ncr53c875-0-<6,0>: FAST-20 WIDE SCSI 40.0 MB/s (50 ns, offset 16)
FAST-20 (Official name from T10) a.k.a SCSI-III a.k.a ULTRA SCSI
20 Mega-transfers/second --> 20 MB/s with 8 bits SCSI, 40 MB/s with 16
bits (Wide 16) SCSI.
> I'm confused here. The linux NCR drivers state this chipset can do
> Ultra-Wide, which I had thought to mean 'SCSI-III'... can someone clear
> this up?
You should have a look at ftp://linux.wauug.org/pub/roudier/README
Gerard.
