Date: Thu, 14 Nov 1996 20:19:27 -0600 (CST) From: Joe Greco <joegreco@execpc.com> To: freebsd-scsi@freebsd.org Cc: jgreco@brasil.moneng.mei.com Subject: Question about AHA-3940U "UltraSCSI" Message-ID: <199611150219.UAA09545@earth.execpc.com>
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Hi all, OS: FreeBSD 2.2-CURRENT (few days before -ALPHA) Machine: ASUS P55TP4XE, P133 CPU, 32MB RAM, NCR 810 I recently acquired an Adaptec 3940U. This is the "Ultra-SCSI" capable variant of the 3940, which I have been using successfully for quite some time. The drives I have connected to it, two ranks of six Seagate ST-31055N's each, are Ultra-SCSI capable. FreeBSD sees the 3940U and identifies it as an Ultra SCSI controller. However, if I enable Ultra-SCSI mode in the Adaptec setup menu, FreeBSD still sees the controller, but experiences errors when writing to the drive. I have not tried reading. The Adaptec utilities have no problems verifying, etc., the disks, so I do not think it is a cabling issue. My guess is that perhaps nobody has actually had one of these to play with, or something like that. I am in absolutely no need of Ultra-SCSI support... I bought the U drives for the extra cache, and I bought the controller because it seemed silly not to buy a controller capable of keeping up with the drives. However, the intended application is "Usenet news", so it is really not going to be noticeable to me if I do not run these as Ultra-SCSI. However, I would gladly provide any further information, testing, access to the box, etc., if anyone is interested in resolving this issue. This machine is _NOT_ in service at this time, so I am more than able to abuse/crash/etc it at this time!! (But I only have a few weeks before I want to put this box on line.) Thanks, ... Joe
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