From owner-freebsd-questions@FreeBSD.ORG Wed May 31 02:32:58 2006 Return-Path: X-Original-To: questions@freebsd.org 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 E11F016A524 for ; Wed, 31 May 2006 02:32:58 +0000 (UTC) (envelope-from jfalconer@puc.edu) Received: from ecf2.puc.edu (ecf2.puc.edu [67.134.132.32]) by mx1.FreeBSD.org (Postfix) with ESMTP id 4931643D46 for ; Wed, 31 May 2006 02:32:57 +0000 (GMT) (envelope-from jfalconer@puc.edu) Received: from localhost (jfalconer@localhost) by ecf2.puc.edu (8.11.6/8.10.1) with ESMTP id k4V2Wvl22133 for ; Tue, 30 May 2006 19:32:57 -0700 (PDT) Date: Tue, 30 May 2006 19:32:56 -0700 (PDT) From: Jon Falconer To: questions@freebsd.org Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Cc: Subject: transfer speed of USB on a Dell PE2650 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: Wed, 31 May 2006 02:33:00 -0000 Greetings, I thought that an external USB hard drive would make a good backup device. So I did some trial file copies. Even though the servers USB ports are USB2.0 and the hard drive enclosure is USB2.0 I was getting a little less than 1MByte per second of throughput. I do have the ehci device as well as uhci and ohci configured into the kernel. But looking at the boot messages I do not see that it finds an ehci device, only an ohci. Has anyone gotten a full USB2.0 throughput on Dell PowerEdge server hardware? Thanks, Jon