From owner-freebsd-scsi Thu Mar 2 9:26:29 2000 Delivered-To: freebsd-scsi@freebsd.org Received: from feral.com (feral.com [192.67.166.1]) by hub.freebsd.org (Postfix) with ESMTP id 5FDE737BD8C for ; Thu, 2 Mar 2000 09:26:27 -0800 (PST) (envelope-from mjacob@feral.com) Received: from beppo.feral.com (beppo [192.67.166.79]) by feral.com (8.9.3/8.9.3) with ESMTP id JAA28433; Thu, 2 Mar 2000 09:26:24 -0800 Date: Thu, 2 Mar 2000 09:26:24 -0800 (PST) From: Matthew Jacob Reply-To: mjacob@feral.com To: up@3.am Cc: scsi@FreeBSD.ORG Subject: Re: Can't see DLT4000 In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-scsi@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org > > > Don't mix differential with single ended. It's an electrical thing- it's very > > bad to mix the two- you run the risk of damaging the SE components. > > ok...but what if they're on a separate SCSI bus? I have the hard drives > on channel A (LVD ultra everything) and the tape drive *alone* on channel > B. Does that make a difference? Yes- normally that'd be the case if the second bus was indeed high voltage differential. *I* was confused by this too when I first got an LVD controller- I don't know of any that support low-voltage differential, single-ended *AND* high voltage differential- as far as I know, and maybe Ken/Justin will correct me on this, the LVD controllers we know of support SE/LowVoltageDiff- this does not include your DLT4000. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message