Date: Mon, 24 Jul 2000 02:39:05 -0700 From: Mike Smith <msmith@freebsd.org> To: Mike Hoskins <mike@adept.org> Cc: hackers@freebsd.org Subject: Re: Driver for Adaptec/Dell/HP PCI:SCSI RAID adapters available Message-ID: <200007240939.CAA21143@mass.osd.bsdi.com> In-Reply-To: Your message of "Mon, 24 Jul 2000 02:02:36 PDT." <Pine.BSF.4.21.0007240156070.24007-100000@snafu.adept.org>
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> On Sun, 23 Jul 2000, Mike Smith wrote: > > > > These adapters are OEMed by Dell as the PERC 2/QC and by HP as the HP > > > NetRAID-4m. > > FWIW, I've got a plethora of 2450's and 4350's at work... I think some > have the PERC 3, but I'll check tomorrow... and grab any with the PERC > 2 (or are the 2/3 models closely enough related to both be > supported?). I'm definately up for some testing... Up to now, we've been > using Linux on these with a Dell-provided, binary kernel module - ick (the > PERC stuff isn't in Linux' standard RAID support)! Ok, the deal is like this. There are two major PERC families; AMI-based and Adaptec-based. The AMI-based family constitutes the PERC, PERC 2/SC and PERC 2/DC. These are all supported by the 'amr' driver and probably aren't interesting to you. (Note that we seem to have firmware issues with the 2/DC at the moment.) The Adaptec-based family is divided into two sub-families; the StrongARM based controllers (PERC 2/QC) and the i960Rx based controllers (PERC 2/Si, PERC 3/Si, PERC 3/Di). I don't have any of the i960Rx-based controllers here to work with (yet, I have been promised some), so the driver currently only supports the StrongARM based controllers. They're easy to tell apart; the i960Rx controllers are the ones built into the motherboard (eg. on the PE2450), while the PERC 2/QC is a full-length PCI card with a large daughterboard. I don't know anything about the PE4350, so I don't know which controller it has. I know the 2400, 2450 and 4400 have the i960Rx-based models. The differences between these two families are quite small, and as soon as I can get my hands on an i960Rx-based controller I will make the requisite changes. I expect this won't take more than a couple of weeks. Keep in touch, thanks! -- ... 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] To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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