From owner-freebsd-questions@FreeBSD.ORG Fri Jan 14 01:04:18 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 4540D16A4CE for ; Fri, 14 Jan 2005 01:04:18 +0000 (GMT) Received: from skippyii.compar.com (old.compar.com [216.208.38.130]) by mx1.FreeBSD.org (Postfix) with ESMTP id 791A143D39 for ; Fri, 14 Jan 2005 01:04:17 +0000 (GMT) (envelope-from matt@gsicomp.on.ca) Received: from hermes (CPE00062566c7bb-CM000039c69a66.cpe.net.cable.rogers.com [69.193.82.185])j0E1Bw9B092113; Thu, 13 Jan 2005 20:11:58 -0500 (EST) (envelope-from matt@gsicomp.on.ca) Message-ID: <005801c4f9d4$a924f110$1200a8c0@gsicomp.on.ca> From: "Matt Emmerton" To: "Drumslayer2" , References: <20050114003814.27395.qmail@web42109.mail.yahoo.com> Date: Thu, 13 Jan 2005 20:02:02 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1437 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1441 Subject: Re: How can I speed up a dd copy? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 14 Jan 2005 01:04:18 -0000 > Hello > When I am performing a dd between (2) 36 Gig 160 > disks (to duplicate them) it takes about 2.5 hrs. Is > there any way I can speed this up? Is there any better > way I can clone a bootable main disk? A larger blocksize (bs=) will help dramatically. -- Matt Emmerton