From owner-freebsd-questions@FreeBSD.ORG Fri Oct 12 12:59:59 2007 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 8123016A419 for ; Fri, 12 Oct 2007 12:59:59 +0000 (UTC) (envelope-from wmoran@potentialtech.com) Received: from mail.potentialtech.com (internet.potentialtech.com [66.167.251.6]) by mx1.freebsd.org (Postfix) with ESMTP id 416FF13C49D for ; Fri, 12 Oct 2007 12:59:58 +0000 (UTC) (envelope-from wmoran@potentialtech.com) Received: from vanquish.pitbpa0.priv.collaborativefusion.com (pr40.pitbpa0.pub.collaborativefusion.com [206.210.89.202]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.potentialtech.com (Postfix) with ESMTP id DE8D6EBC3B; Fri, 12 Oct 2007 08:59:57 -0400 (EDT) Date: Fri, 12 Oct 2007 08:59:56 -0400 From: Bill Moran To: "Monah Baki" Message-Id: <20071012085956.7d8faf2d.wmoran@potentialtech.com> In-Reply-To: <3236.67.100.188.210.1192191787.squirrel@www.geekisp.com> References: <3236.67.100.188.210.1192191787.squirrel@www.geekisp.com> X-Mailer: Sylpheed 2.4.4 (GTK+ 2.10.14; i386-portbld-freebsd6.2) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: freebsd-questions@freebsd.org Subject: Re: 1 TB data copy 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: Fri, 12 Oct 2007 12:59:59 -0000 In response to "Monah Baki" : > Hi all, > > We have a windows 2003 server and 1 freebsd 6.2 server. The 2003 server > supports USB 1 while the freebsd supports usb 2. > We went and purchased an external 1 TB usb 2 harddrive. > Our objective is to copy 700GB worth of data from the windows to the freebsd > server then take the external harddive to a remote client who runs windows > 2003 and then copy the data back to the windows server. > The throughput of copying the data from windows to the usb attached to it > was ridiculous, more than 12 hours to copy 60GB of data. > I tried copying a 1GB file from windows to the usb attached to the freebsd > and it took less than 5 minutes, but ofcourse when I tried to mount the > usb back to the windows box I could not see the 1GB file that I copied. > How can use the freebsd as the destination copy since it has a much better > throughput and at the same time have the windows box see the 600GB file > that was copied once I attach the usb harddrive to it. I expect the filesystem is the problem. Windows doesn't understand UFS. FAT has been the traditional solution to this, since just about every OS understands FAT, but I don't believe FAT will support files as large as you're working with. I'm not completely up to speed with FreeBSD's NTFS support. Last I looked at it, it was experimental and there were warnings everywhere. I assume it's improved since then (~3 years ago) but can't say with authority. However, I think that's your only option. Luckily, since you're just using the USB drive to move a file, and can keep it safe in another location until you're sure it transferred safely, this shouldn't be too risky. I would format the drive with the Windows machine and make it NTFS, then work with the FreeBSD mount options to get FreeBSD to mount it. Have a look at mount_ntfs. -- Bill Moran http://www.potentialtech.com