From owner-freebsd-scsi Wed Sep 8 14:29:50 1999 Delivered-To: freebsd-scsi@freebsd.org Received: from duke.cs.duke.edu (duke.cs.duke.edu [152.3.140.1]) by hub.freebsd.org (Postfix) with ESMTP id 882C014DAA for ; Wed, 8 Sep 1999 14:29:46 -0700 (PDT) (envelope-from gallatin@cs.duke.edu) Received: from grasshopper.cs.duke.edu (grasshopper.cs.duke.edu [152.3.145.30]) by duke.cs.duke.edu (8.9.1/8.9.1) with ESMTP id RAA12196; Wed, 8 Sep 1999 17:29:05 -0400 (EDT) Received: (from gallatin@localhost) by grasshopper.cs.duke.edu (8.9.3/8.9.1) id RAA87397; Wed, 8 Sep 1999 17:28:35 -0400 (EDT) (envelope-from gallatin@cs.duke.edu) From: Andrew Gallatin MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Date: Wed, 8 Sep 1999 17:28:34 -0400 (EDT) To: Andrew Heybey Cc: freebsd-scsi@FreeBSD.ORG Subject: Re: data corruption when using aic7890 In-Reply-To: <199909082031.QAA74557@stiegl.niksun.com> References: <14294.47942.226648.687089@grasshopper.cs.duke.edu> <199909082031.QAA74557@stiegl.niksun.com> X-Mailer: VM 6.43 under 20.4 "Emerald" XEmacs Lucid Message-ID: <14294.54296.976860.242067@grasshopper.cs.duke.edu> Sender: owner-freebsd-scsi@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org Andrew Heybey writes: > gallatin> What!?? You mean if I just move the cable to the 20Mhz > gallatin> connector, all my problems will just go away??? Even > gallatin> though its just a different port on the same PCI > gallatin> controller? (at least on my P2B-LS) > > Well, I don't know if *your* problems will go away (I'm not 100% sure > that your problem is the same as my problem). However, my problem > went away went I moved the cable to the plain "Ultra" (20MHz) > connector rather than the "Ultra2" (40MHz) connector. > > Peak performance is lower (at least with multiple disks on the bus). > > Sorry, I thought that I had mentioned this someplace. Maybe I should > submit a follow-up to the PR to mention this work-around. You mentioned it to me, in your original follow up. But I took it to mean you'd purchased a working UltraWide controller & plugged it into a PCI slot. I've now plugged my drives into the UltraWide connector on the motherboard. This won't cause a slowdown for me, as they are only 20Mhz UltraWide drives anyway. I'm running the test again. I'll let you know how it comes out. Thanks! Drew ------------------------------------------------------------------------------ Andrew Gallatin, Sr Systems Programmer http://www.cs.duke.edu/~gallatin Duke University Email: gallatin@cs.duke.edu Department of Computer Science Phone: (919) 660-6590 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message