From owner-freebsd-current@FreeBSD.ORG Thu Jul 23 09:01:01 2009 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 0261E106566B for ; Thu, 23 Jul 2009 09:01:01 +0000 (UTC) (envelope-from gary.jennejohn@freenet.de) Received: from mout1.freenet.de (mout1.freenet.de [IPv6:2001:748:100:40::2:3]) by mx1.freebsd.org (Postfix) with ESMTP id 919008FC21 for ; Thu, 23 Jul 2009 09:01:00 +0000 (UTC) (envelope-from gary.jennejohn@freenet.de) Received: from [195.4.92.10] (helo=0.mx.freenet.de) by mout1.freenet.de with esmtpa (ID gary.jennejohn@freenet.de) (port 25) (Exim 4.69 #92) id 1MTuAc-0001FV-SK; Thu, 23 Jul 2009 11:00:58 +0200 Received: from tbad0.t.pppool.de ([89.55.186.208]:61404 helo=ernst.jennejohn.org) by 0.mx.freenet.de with esmtpa (ID gary.jennejohn@freenet.de) (port 25) (Exim 4.69 #93) id 1MTuAc-0007pX-H3; Thu, 23 Jul 2009 11:00:58 +0200 Date: Thu, 23 Jul 2009 11:00:57 +0200 From: Gary Jennejohn To: freebsd-current@freebsd.org Message-ID: <20090723110057.00f4cbcd@ernst.jennejohn.org> In-Reply-To: <200907231004.37704.hselasky@c2i.net> References: <4A67CD2B.9040200@mykitchentable.net> <200907231004.37704.hselasky@c2i.net> X-Mailer: Claws Mail 3.7.2 (GTK+ 2.16.2; amd64-portbld-freebsd8.0) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-purgate-ID: 149285::1248339658-00006070-371E4C55/0-0/0-0 Cc: Drew Tomlinson Subject: Re: USB 2.0 External Drive - What Is A Reasonable Transfer Rate? X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: gary.jennejohn@freenet.de List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 23 Jul 2009 09:01:01 -0000 On Thu, 23 Jul 2009 10:04:36 +0200 Hans Petter Selasky wrote: > On Thursday 23 July 2009 04:38:35 Drew Tomlinson wrote: > > I have a USB 2.0 external drive that's formatted as NTFS under Windows > > XP. I've plugged it into my 8.0 BETA2 install and am copying files to a > > local raid1z zpool with one vdev consisting of 4 drives. I'm trying to > > move about 100 GB of assorted files and have been at it all day. The > > USB drive contains assorted files such as mp3, CD/DVD images, zip, > > documents, etc. I'm guessing most files range between 1 - 4 MB with > > some as large as 4 GB. > > > > Anyway, iostat shows the transfer rate at around 2 - 3 MB per second. > > Is this all I should expect from a USB 2.0 drive? Is there anything I > > can do to speed this up? > > Hi, > > Benchmark your device like this: > > dd if=/dev/daX of=/dev/null bs=65536 > > It will give you the correct transferrate number. > > Maybe there are some utilities in /usr/ports that can read NTFS faster than > the kernel NTFS driver. > You could try /usr/ports/sysutils/fusefs-ntfs. --- Gary Jennejohn