From owner-freebsd-questions@FreeBSD.ORG Tue Jun 17 16:26:25 2008 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 1818D1065687 for ; Tue, 17 Jun 2008 16:26:25 +0000 (UTC) (envelope-from olli@lurza.secnetix.de) Received: from lurza.secnetix.de (lurza.secnetix.de [212.17.241.230]) by mx1.freebsd.org (Postfix) with ESMTP id 673648FC19 for ; Tue, 17 Jun 2008 16:26:24 +0000 (UTC) (envelope-from olli@lurza.secnetix.de) Received: from lurza.secnetix.de (localhost [127.0.0.1]) by lurza.secnetix.de (8.14.1/8.14.1) with ESMTP id m5HGQMxQ060406; Tue, 17 Jun 2008 18:26:22 +0200 (CEST) (envelope-from oliver.fromme@secnetix.de) Received: (from olli@localhost) by lurza.secnetix.de (8.14.1/8.14.1/Submit) id m5HGQMLk060405; Tue, 17 Jun 2008 18:26:22 +0200 (CEST) (envelope-from olli) Date: Tue, 17 Jun 2008 18:26:22 +0200 (CEST) Message-Id: <200806171626.m5HGQMLk060405@lurza.secnetix.de> From: Oliver Fromme To: freebsd-questions@FreeBSD.ORG, roberthuff@rcn.com, chris@vindaloo.com In-Reply-To: <20080617180604.I8795@wojtek.tensor.gdynia.pl> X-Newsgroups: list.freebsd-questions User-Agent: tin/1.8.3-20070201 ("Scotasay") (UNIX) (FreeBSD/6.2-STABLE-20070808 (i386)) MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-2.1.2 (lurza.secnetix.de [127.0.0.1]); Tue, 17 Jun 2008 18:26:23 +0200 (CEST) Cc: Subject: Re: Replacing tape changer with USB disk drives. X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: freebsd-questions@FreeBSD.ORG, roberthuff@rcn.com, chris@vindaloo.com List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 17 Jun 2008 16:26:25 -0000 Wojciech Puchar wrote: > > Cheap controller in the USB enclosure. I've used quite > > a few USB enclosures in the past years, and there are > > significant performance differences. As a rule of thumb, > > the cheaper the box, the slower it is. Of course there > > are exceptions to that rule. > > actually - firewire enclosures are not much more expensive, but you always > get at least 40MB/s Actually they are much more expensive. And more difficult to buy. Most shops here don't have them at all, they only have USB and eSATA, because most people want USB or eSATA. I just looked at one of the most popular online shops around here. They have about 50 different USB enclosures; prices start at 10 EUR. But they have only six Firewire enclosures (and none of them is 2.5"!), the cheapest one is 34 EUR. However, they do have a larger number of eSATA enclosures, about 30 different ones. But I don't know how well FreeBSD copes with hot-plugging of eSATA devices; I've never tried one of these. I'm not aware of any specific support yet, but it might work just as well as hot-plug IDE frames. Best regards Oliver -- Oliver Fromme, secnetix GmbH & Co. KG, Marktplatz 29, 85567 Grafing b. M. Handelsregister: Registergericht Muenchen, HRA 74606, Geschäftsfuehrung: secnetix Verwaltungsgesellsch. mbH, Handelsregister: Registergericht Mün- chen, HRB 125758, Geschäftsführer: Maik Bachmann, Olaf Erb, Ralf Gebhart FreeBSD-Dienstleistungen, -Produkte und mehr: http://www.secnetix.de/bsd "[...] one observation we can make here is that Python makes an excellent pseudocoding language, with the wonderful attribute that it can actually be executed." -- Bruce Eckel