From owner-freebsd-stable Thu Feb 14 9:21:17 2002 Delivered-To: freebsd-stable@freebsd.org Received: from peak.mountin.net (peak.mountin.net [207.227.119.2]) by hub.freebsd.org (Postfix) with ESMTP id F316C37B41C for ; Thu, 14 Feb 2002 09:21:14 -0800 (PST) Received: (from daemon@localhost) by peak.mountin.net (8.9.1/8.9.1) id LAA09387; Thu, 14 Feb 2002 11:21:04 -0600 (CST) (envelope-from jeff-ml@mountin.net) Received: from mke-65-29-139-162.wi.rr.com(65.29.139.162) by peak.mountin.net via smap (V1.3) id sma009381; Thu Feb 14 11:20:49 2002 Message-Id: <4.3.2.20020214111215.0367d940@207.227.119.2> X-Sender: jeff-ml@207.227.119.2 X-Mailer: QUALCOMM Windows Eudora Version 4.3 Date: Thu, 14 Feb 2002 11:22:15 -0600 To: Mike Tancsa , From: "Jeffrey J. Mountin" Subject: Re: Best ATA RAID controller Cc: freebsd-stable@FreeBSD.ORG In-Reply-To: <5.1.0.14.0.20020214012729.049caf08@192.168.0.12> References: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG At 01:29 AM 2/14/02 -0500, Mike Tancsa wrote: >Some of the other IDE raid cards will allow you to use a master and slave >on the same channel. From what I understand the problem with this is that >if a slave dies, it could potentially take out the master or vice versa. Performance is the issue and reason why 3Ware uses one drive per channel. After all, only one drive on a channel can talk at the same time. Knowing that it's easy to understand why 3Ware does much better than those using master/slave pairs. Jeff Mountin - jeff@mountin.net Systems/Network Administrator FreeBSD - the power to serve To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message