Date: Tue, 21 Apr 1998 10:33:16 +0800 From: Stephen Hocking-Senior Programmer PGS Tensor Perth <shocking@prth.pgs.com> To: David Kelly <dkelly@hiwaay.net> Cc: hardware@FreeBSD.ORG Subject: Re: Narrow SCSI controllers, and using WIDE drives with them Message-ID: <199804210233.KAA02958@ariadne.tensor.pgs.com> In-Reply-To: Your message of "Mon, 20 Apr 1998 18:39:31 EST." <199804202339.SAA04391@nospam.hiwaay.net>
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> Dan Strick writes: > > It ought to work by default. If not, you may be able to tell the > > host adapter via its BIOS interface to only do narrow transfers > > with specific SCSI devices. > > That's sorta hard to do with a narrow controller as all I've seen are > not capable of wide negotiations therefore its not an option. > > My 2940 (narrow with the 7860 chipset and BIOS 1.21) didn't like a wide > drive that was attached. > Having started this debate, I'd like to say that I'm buying an Ultra-Wide controller (NCR-875) to go with the NCR-810 which has the narrow devices on it. I've been offered the use of an IBM 4.3GB UW drive from work. I have to boot out a PCI ethernet card, but as the box in question isn't going to be hooked up to a home 100Mbit network in the immediate future, it's not a problem. From what people have been saying, it seems like a lot of grief is involved in mxing wide & narrow devices on the same bus. Stephen To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hardware" in the body of the message
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