From owner-freebsd-questions@FreeBSD.ORG Sun Jan 2 19:56:35 2011 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 18397106564A for ; Sun, 2 Jan 2011 19:56:35 +0000 (UTC) (envelope-from jcw@speakeasy.net) Received: from mail8.sea5.speakeasy.net (mail8.sea5.speakeasy.net [69.17.117.53]) by mx1.freebsd.org (Postfix) with ESMTP id F0B3B8FC08 for ; Sun, 2 Jan 2011 19:56:34 +0000 (UTC) Received: (qmail 3847 invoked from network); 2 Jan 2011 19:56:34 -0000 Received: from dsl081-163-121.sea1.dsl.speakeasy.net (HELO w16.stradamotorsports.com) (jcw@[64.81.163.121]) (envelope-sender ) by mail8.sea5.speakeasy.net (qmail-ldap-1.03) with SMTP for ; 2 Jan 2011 19:56:34 -0000 Message-ID: <4D20D872.3020400@speakeasy.net> Date: Sun, 02 Jan 2011 11:56:34 -0800 From: "Jason C. Wells" User-Agent: Mozilla/5.0 (X11; U; FreeBSD amd64; en-US; rv:1.9.1.10) Gecko/20100808 Lightning/1.0b1 Thunderbird/3.0.5 MIME-Version: 1.0 To: freebsd general questions Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: Half a Mirror Backup X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 02 Jan 2011 19:56:35 -0000 Is using one half of a mirror as a backup a good/bad idea? I was thinking of rotating drives on a periodic basis as a back up method. You'd get the backup instantly, but rebuilding the mirror with the incoming drive would take a little time and leave you vulnerable to a small loss of data if a disk failed while the mirror was rebuilding. Regards, Jason