From owner-freebsd-questions@FreeBSD.ORG Thu Jan 27 20:14:47 2005 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 8BC8C16A4CF for ; Thu, 27 Jan 2005 20:14:47 +0000 (GMT) Received: from wproxy.gmail.com (wproxy.gmail.com [64.233.184.206]) by mx1.FreeBSD.org (Postfix) with ESMTP id 0A71343D31 for ; Thu, 27 Jan 2005 20:14:46 +0000 (GMT) (envelope-from cmorland@gmail.com) Received: by wproxy.gmail.com with SMTP id 58so333691wri for ; Thu, 27 Jan 2005 12:14:46 -0800 (PST) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:reply-to:to:subject:mime-version:content-type:content-transfer-encoding; b=oQn81/4SKbeRog9udU05QCdRzr2QGRepaBKwgM9J9OvB+vooAeOwJjpylYF7GsfaZ45t14xg97C4gCKaPlWWjlaFvf6SBmUM8UbLWMST8zSa+tR6vK9kTYj+d4Kg1q+nUPJ5Bs3wpUiJjEicP2fyUD9BsxT7LAx+7FSIezrRGfI= Received: by 10.54.46.50 with SMTP id t50mr43299wrt; Thu, 27 Jan 2005 12:14:46 -0800 (PST) Received: by 10.54.28.52 with HTTP; Thu, 27 Jan 2005 12:14:46 -0800 (PST) Message-ID: <8ca9329050127121428870c21@mail.gmail.com> Date: Thu, 27 Jan 2005 15:14:46 -0500 From: Chad Morland To: freebsd-questions@freebsd.org Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Subject: RAID1, a failed disk and performance X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: Chad Morland List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 27 Jan 2005 20:14:47 -0000 What happens in terms of performance when a drive in a RAID1 system fails? Will disk access be slower because it attempts to read/write to a failed disk or will performance be faster because it doesn't need to do half the work it usually does? I couldn't really find any online resources that deal with performance levels when there are failed drives present in a RAID array. -CM