Date: Tue, 31 Jul 2001 01:07:46 -0700 From: Mike Smith <msmith@freebsd.org> To: "Kevin Oberman" <oberman@es.net> Cc: Tim Kellers <timothyk@server1.wallnet.com>, stable@FreeBSD.ORG Subject: Re: PERC 3 Dell 2500 and FreeBSD 4.3 stable Message-ID: <200107310807.f6V87kd01790@mass.dis.org> In-Reply-To: Your message of "Mon, 30 Jul 2001 13:18:06 PDT." <200107302018.f6UKI6b28543@ptavv.es.net>
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> Here is a summary of PERC hardware from Mike Smith who did most (all)
> of the driver work for them:
> The PERC, PERC 2/SC, PERC 2/DC and PERC 3/D* are AMI designs.
>
> The PERC 2/Si, PERC 2/Di, PERC 3/Si and PERC 2/QC are Adaptec designs.
>
> "PERC" means "this is a Dell-branded RAID controller".
> "2" and "3" refer to 40MHz vs 80MHz SCSI support.
> "S" "D" and "Q" are single, dual and quad channel designations.
> "i" means it's integrated onto the server motherboard.
> "C" means it's an addin card.
> "L" means it's the low-cost version.
Just to amend this; the 3/DC is an AMI controller, but the 3/Di is an
Adaptec design.
Another way of looking at it is that if it's an 'i', or a QC, it's an
Adaptec. Otherwise it's an AMI. Knowing Dell, though, this may change
again without too much notice. 8(
--
... every activity meets with opposition, everyone who acts has his
rivals and unfortunately opponents also. But not because people want
to be opponents, rather because the tasks and relationships force
people to take different points of view. [Dr. Fritz Todt]
V I C T O R Y N O T V E N G E A N C E
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