From owner-freebsd-hardware@FreeBSD.ORG Wed Feb 7 18:34:37 2007 Return-Path: X-Original-To: freebsd-hardware@freebsd.org Delivered-To: freebsd-hardware@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 6F0E616A405 for ; Wed, 7 Feb 2007 18:34:37 +0000 (UTC) (envelope-from mureninc@gmail.com) Received: from ug-out-1314.google.com (ug-out-1314.google.com [66.249.92.171]) by mx1.freebsd.org (Postfix) with ESMTP id 0BE9213C4A3 for ; Wed, 7 Feb 2007 18:34:36 +0000 (UTC) (envelope-from mureninc@gmail.com) Received: by ug-out-1314.google.com with SMTP id o2so245788uge for ; Wed, 07 Feb 2007 10:34:34 -0800 (PST) DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=g/Kt3tKIwX3nVpT0NR8LNd+0zLr8ysSqEMhLPmpkTyrGHqjMrC1ZR8ZmasS2rBepjdPTIn7odp9RPINDaonf5TmP32gwDkgFlmY2wabHCXsdFK55R6QZn2lwlkzuPsmy6bIo3dxJztkkxCYV3imukdascGPQDqm9Uk7YRrP0Z5w= Received: by 10.82.165.1 with SMTP id n1mr1851089bue.1170870860967; Wed, 07 Feb 2007 09:54:20 -0800 (PST) Received: by 10.70.36.20 with HTTP; Wed, 7 Feb 2007 09:54:06 -0800 (PST) Message-ID: Date: Wed, 7 Feb 2007 12:54:06 -0500 From: "Constantine A. Murenin" To: rsh In-Reply-To: <1170861895.87827.8.camel@localhost> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <1170861895.87827.8.camel@localhost> Cc: freebsd-hardware@freebsd.org Subject: Re: External HDD X-BeenThere: freebsd-hardware@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: General discussion of FreeBSD hardware List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 07 Feb 2007 18:34:37 -0000 On 07/02/07, rsh wrote: > Hi > > For backup purposes, i need removable HDD, connected through USB or > Fireware > > I'm really impressed by Transcend solution and would like to use their > Transcend 1.8" Portable HDD 20 GB, USB 2.0 > It takes power directly from USB. > > Did somebody have success with this device? > > If it is a bad idea, any suggestions for External HDD ? > > Thanks Most USB HDDs should work fine. Unless you specifically want minimal size and super-super low noise, I'd recommend to go with 2.5" drives. You can easily get an external 2.5" USB enclosure, and then separately buy a 2.5" drive of any size you want. As far as power goes, 2.5" 5400rpm drives from HGST (formerly IBM and Hitachi) -- 5k100, 5k120 and 5k160 -- should consume a maximum of 5.0 W on startup, so they can be powered from two USB ports (2 * 2.5 W = 5.0 W), something that most enclosures offer. I have personally used CoolMax HD-211-U2 [0] with Fujitsu MHV2040AT 2.5" 4200rpm drive without any problems for a rather long time, to boot OpenBSD as well as FreeBSD directly from the USB drive, as well as to transfer a few files here and there. CoolMax now has better versions of this enclosure, for example, HD-260B-U2 [1]. [0] http://www.newegg.com/Product/Product.asp?Item=N82E16817146034 [1] http://www.newegg.com/Product/Product.asp?Item=N82E16817146065