From owner-freebsd-questions Tue Jun 11 14:45:58 1996 Return-Path: owner-questions Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id OAA29743 for questions-outgoing; Tue, 11 Jun 1996 14:45:58 -0700 (PDT) Received: from mail.barrnet.net (mail.barrnet.net [131.119.246.7]) by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id OAA29732 for ; Tue, 11 Jun 1996 14:45:44 -0700 (PDT) Received: from schizo.cdsnet.net (schizo.cdsnet.net [204.118.244.32]) by mail.barrnet.net (8.7.5/MAIL-RELAY-LEN) with ESMTP id OAA20258 for ; Tue, 11 Jun 1996 14:45:43 -0700 (PDT) Received: from localhost (mrcpu@localhost) by schizo.cdsnet.net (8.7.5/8.6.12) with SMTP id OAA26843; Tue, 11 Jun 1996 14:47:18 -0700 (PDT) Date: Tue, 11 Jun 1996 14:47:17 -0700 (PDT) From: Jaye Mathisen To: "Aaron D. Gifford" cc: freebsd-questions@freebsd.org, bsdi-users@bsdi.com Subject: Re: Adaptec2940UW vs. BusLogicBT-958 (opinions?) In-Reply-To: <2.2.32.19960611210700.006ebe8c@infowest.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-questions@freebsd.org X-Loop: FreeBSD.org Precedence: bulk My understanding is that BSD/OS won't drive the 2940UW in Wide mode, which alone should just about make the comparison moot. On Tue, 11 Jun 1996, Aaron D. Gifford wrote: > Okay BSD users (both BSD/OS 2.1 and FreeBSD), which SCSI-3 UltraWide > controller is superior (performance wise), the BusLogic BT-958 OR the > Adaptec 2940UW? I've heard it both ways. Someone told me that the BusLogic > card has a larger tag queue and that such a feature made it superior. > Another person explained that the Adaptec uses newer tag queue command > processing that is much faster than the older BusLogic technology, and that > makes the Adaptec superior. > > I'm planning on outfitting two machines with whichever controller appears > the better. I will be using SCSI-2 Fast&Wide drives to begin with, but will > later add UltraWide drives as they become available. > > I have yet to decide whether to run BSD/OS or FreeBSD on them. Please > refrain from commenting on the merits of BSD/OS or FreeBSD over the other, > since my question has little to do with which OS I chose (except whether the > OS solidly supports the SCSI controller in question). I've used both OS's > on other systems and like each for different reasons. > > Which is superior? Is there any real data? Has anyone used both cards in > both OS environments? > > Thanks in advance, > Aaron "A SCSI-3 UltraWide Newbie" Gifford > > --=+=--=+=--=+=--=+=--=+=--=+=--=+=--=+=--=+=--=+=--=+=--=+=--=+=--=+=--=+=-- > Aaron D. Gifford InfoWest, 1845 W. Sunset Blvd, St. George, UT 84770 > InfoWest Networking Phone: (801) 674-0165 FAX: (801) 673-9734 > Visit InfoWest at: "http://www.infowest.com/" > ICBM: 37.07847 N, 113.57858 W > "Southern Utah's Finest Network Connection" > --=+=--=+=--=+=--=+=--=+=--=+=--=+=--=+=--=+=--=+=--=+=--=+=--=+=--=+=--=+=-- > >