Date: Sat, 18 Mar 2000 22:19:08 -0700 From: Steve Passe <smp@csn.net> To: Chuck Robey <chuckr@picnic.mat.net> Cc: Warner Losh <imp@village.org>, FreeBSD-scsi@FreeBSD.ORG Subject: Re: controller Message-ID: <200003190519.WAA31014@Ilsa.StevesCafe.com> In-Reply-To: Your message of "Sat, 18 Mar 2000 23:57:42 EST." <Pine.BSF.4.21.0003182354180.32633-100000@picnic.mat.net>
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> I see. From pricewatch, 19160's go for about 160-185, 29160's are about
> $200, and 39160's are starting at $240. I will have to check the cables,
> but does our driver support the 39160's? I will have two drives, I have
> two controllers now, it seems like a good bet to get the better
> controller. Note that the 39160 is a dual bus controller, and it even has
> a separate Ultra-2 50 pin I/F for my cdrom :-)
^^^
not quite, it is an ultra, not ultra2, but you don't want ultra2 for the
CDROM anyways. However, be aware that you DO NOT get an ultra-wide bus
on the 39160, which you do get on the 29160. This is important if you have
any ultra-wide (ie non-ultra2-wide) drives, as when you mix the 2 on the
same bus the ultra2-wide devices slow down to ultra speed (80 vs. 40 MB/sec)
Also be aware that the [123]9160 series is ultra160 compatable, if you don't
have u160 drives 2940u2w might be more cost effective.
the cam code does not yet run these cards @ 160MB, no drives have yet surfaced
for testing... As to one 39160 for 2 SCSI busses, I am shopping for 2 29160s
to be able to maximize the PCI bus transfer rate across 2 different PCI busses.
If your mb only has one PCI bus this isn't a consideration.
--
Steve Passe | powered by
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