From owner-freebsd-hardware Fri Aug 9 05:33:38 1996 Return-Path: owner-hardware Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id FAA05302 for hardware-outgoing; Fri, 9 Aug 1996 05:33:38 -0700 (PDT) Received: from Kryten.nina.com (dyn021-gnv.51.fdt.net [205.229.51.22]) by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id FAA05286 for ; Fri, 9 Aug 1996 05:33:27 -0700 (PDT) Received: from localhost (frankd@localhost) by Kryten.nina.com (8.7.5/8.6.12) with SMTP id IAA12885; Fri, 9 Aug 1996 08:24:48 -0400 (EDT) X-Authentication-Warning: Kryten.nina.com: frankd owned process doing -bs Date: Fri, 9 Aug 1996 08:24:47 -0400 (EDT) From: Frank Seltzer X-Sender: frankd@Kryten.nina.com To: "Rodney W. Grimes" cc: scott@statsci.com, freebsd-hardware@freebsd.org Subject: Re: IDE or SCSI if only one drive In-Reply-To: <199608090303.UAA07949@GndRsh.aac.dev.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-hardware@freebsd.org X-Loop: FreeBSD.org Precedence: bulk On Thu, 8 Aug 1996, Rodney W. Grimes wrote: > > On Thu, 8 Aug 1996, Rodney W. Grimes wrote: > > > > > I have qualified the MC4421 for use in production AAC systems, it works > > > just fine with 2.1.5 and the aha2940, as well as the NCR53C810. > > > > Do you get the message: > > > > ahc0:A:2 refuses syncronous negotiation. Using asynchronous transfers > > > > during boot? > > No. The drive properly negotiates a 10Mhz sync rate. Note there are > 2 part numbers associated with this drive model, chech it out on > http://www.micropolis.com. I am using the 8.8mS version of the drive, > perhaps you have the 9.8mS version?? TZ0030-02-5 is the part number of my drive. From Micropolis' Web site: 8.8 ms average seek time for TZ0030-02-5 > -- > Rod Grimes rgrimes@gndrsh.aac.dev.com > Accurate Automation Company Reliable computers for FreeBSD > Frank -- Only in America can a homeless veteran sleep in a cardboard box while a draft dodger sleeps in the White House.