Date: Tue, 20 Feb 2001 09:08:04 -0800 (PST) From: Tom Samplonius <tom@sdf.com> To: The Hermit Hacker <scrappy@hub.org> Cc: freebsd-scsi@freebsd.org Subject: Re: Mylex 170 controller ... Message-ID: <Pine.BSF.4.05.10102200904430.27851-100000@misery.sdf.com> In-Reply-To: <Pine.BSF.4.33.0102201341190.1999-100000@mobile.hub.org>
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On Tue, 20 Feb 2001, The Hermit Hacker wrote:
> Can anyone offer some opinions on this? I know its supported, I just
> haven't dealt with RAID controllers yet, so have zero experience to work
> on here ...
>
> We have two choices ... a 32MB and a 64MB model ... at what point would
> going to a 64MB model be warranted? What sort of environment?
Well, I have a number of AccelRAID 352s which are a faster version of
the 170 with dual channels.
The IOs per second of each card is published on the Mylex web site. You
should make sure you can live with that first. No idea how they test, but
likely it is based on 100% cache hits.
Generally I always install the largest cache possible in RAID
controllers, regardless of the application.
The stock mly driver is solid, but not a fast performer. Mike Smith has
some patches
> Thanks ...
>
> Marc G. Fournier ICQ#7615664 IRC Nick: Scrappy
> Systems Administrator @ hub.org
> primary: scrappy@hub.org secondary: scrappy@{freebsd|postgresql}.org
>
>
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