From owner-freebsd-questions Mon Apr 29 15:34: 1 2002 Delivered-To: freebsd-questions@freebsd.org Received: from f1.masterplan.org (h24-64-10-79.cg.shawcable.net [24.64.10.79]) by hub.freebsd.org (Postfix) with ESMTP id 2C50B37B417 for ; Mon, 29 Apr 2002 15:33:58 -0700 (PDT) Received: from masterplan.org (localhost [127.0.0.1]) by masterplan.org (8.12.3/8.12.2) with ESMTP id g3TLEZNi058976 for ; Mon, 29 Apr 2002 15:14:36 -0600 (MDT) (envelope-from jbg@masterplan.org) Received: from localhost (jbg@localhost) by masterplan.org (8.12.3/8.12.3/Submit) with ESMTP id g3TLEZeE058973 for ; Mon, 29 Apr 2002 15:14:35 -0600 (MDT) X-Authentication-Warning: masterplan.org: jbg owned process doing -bs Date: Mon, 29 Apr 2002 15:14:35 -0600 (MDT) From: Jason George X-X-Sender: jbg To: freebsd-questions@freebsd.org Subject: ATA RAID question Message-ID: <20020429145414.B58917-100000@f1> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG I was looking into using Soren's new ATA RAID code in a couple of applications. I was planning on building a test system to experiment with both generic and Promise RAID configurations. As I haven't worked with either yet, I have a big question upfront: Can I create a mirror volume on an existing system by installing a new drive on the secondary channel and then use atacontrol to create a mirror of the first drive? I can't find any information that would lead me to believe that this is possible. I'm taking the cautious approach that the mirrored volume pair must be created before a file system is put down on the volume. The ultimate purpose of this experiment is to prove whether or not it is possible to take my existing production systems, add a new drive and mirror the existing drive - all without having to rebuild filesystems or re-install. Any hints would be appreciated! --Jason To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message