From owner-freebsd-questions Mon Mar 11 8:37:46 2002 Delivered-To: freebsd-questions@freebsd.org Received: from tcpns.com (dsl-64-192-239-221.telocity.com [64.192.239.221]) by hub.freebsd.org (Postfix) with ESMTP id 1889D37B405 for ; Mon, 11 Mar 2002 08:37:42 -0800 (PST) Received: from localhost (localhost [127.0.0.1]) by tcpns.com (8.12.2/8.12.2) with ESMTP id g2BGbf78003723 for ; Mon, 11 Mar 2002 11:37:41 -0500 (EST) Date: Mon, 11 Mar 2002 11:37:41 -0500 (EST) From: Jason Borkowsky To: questions@freebsd.org Subject: Using VINUM to do RAID-1 disk mirroring Message-ID: 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 have two FreeBSD machines, both containing a pair of identical hard drives. I am looking to set up vinum to mirror the hard drives, and am not having any success. I have searched the FreeBSD archives, the vinum website, and other websites as well. Here is what I've found so far: Each drive needs to have the file system type changed from FreeBSD to vinum. I have done this no problem. (A side question I have about this is will this affect me if I reboot the machine or am an single user mode? What effects does changing the file system type have?) So now I have two drives, /dev/ad0s1 and /dev/ad2s1 (IDE devices). FreeBSD calls partition "c:" the complete drive, so on one drive (the drive I want mirrored), I have all my file partitions. On the drive I want to mirror to, I only have one partition, c:, which is the whole drive. Before I mirror, do I need to set up identical partitions? According to the man pages, it seems I don't have to. Now, in the man pages, under "Simplified Configuration", it states that to mirror a drive, all I need to do is: vinum -> mirror -v /dev/ad0s1c /dev/ad2s1c The response I SHOULD get is: drive vinumdrive0 device /dev/ad0s1c drive vinumdrive1 device /dev/ad2s1c Instead, the actual response I get is: Could not allocate device vinumdrive0 So what have I done wrong? The man page gives no more information than the simple,, one magical command that should do everything. Any suggestions are appreciated. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message