From owner-freebsd-hackers Fri Nov 21 08:52:28 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.7/8.8.7) id IAA20747 for hackers-outgoing; Fri, 21 Nov 1997 08:52:28 -0800 (PST) (envelope-from owner-freebsd-hackers) Received: from misery.sdf.com (misery.sdf.com [204.244.210.193]) by hub.freebsd.org (8.8.7/8.8.7) with SMTP id IAA20741 for ; Fri, 21 Nov 1997 08:52:23 -0800 (PST) (envelope-from tom@sdf.com) Received: from tom by misery.sdf.com with smtp (Exim 1.73 #1) id 0xYwBL-0000hh-00; Fri, 21 Nov 1997 08:43:51 -0800 Date: Fri, 21 Nov 1997 08:43:49 -0800 (PST) From: Tom To: "Jamil J. Weatherbee" cc: hackers@freebsd.org Subject: Re: SCSI Errors & CCD In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-hackers@freebsd.org X-Loop: FreeBSD.org Precedence: bulk On Thu, 20 Nov 1997, Jamil J. Weatherbee wrote: > I purchased two 4.3 gig IBM External Scsi drives and want to use ccd to > make them mirrors of each other. I would like to install from my 2.2.5 > cds onto these drives. Is there a way to set it up to install onto > mirrored drives at install time or can I do this later? > > I want to be able to boot off of these ccd drives. You can't boot off a ccd filesystem, as the BIOS doesn't know anything about ccd. You have to have a non-ccd root. > What does the following mean: > sd0(ahc0:0:0): parity error during data-in phase > sd0(ahc0:0:0): ABORTED COMMAND > sd0(ahc0:0:0): Initiator Detected error message received, retries: 2 SCSI uses parity on the bus. Apparently you suffered an error. That means that something on the cable is damaging your data. Replace cable, terminators, etc. Tom