From owner-freebsd-geom@FreeBSD.ORG Tue Jan 24 20:24:53 2006 Return-Path: X-Original-To: freebsd-geom@freebsd.org Delivered-To: freebsd-geom@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 8143516A420 for ; Tue, 24 Jan 2006 20:24:53 +0000 (GMT) (envelope-from sergey.lungu@gmail.com) Received: from uproxy.gmail.com (uproxy.gmail.com [66.249.92.192]) by mx1.FreeBSD.org (Postfix) with ESMTP id 32C5C43D60 for ; Tue, 24 Jan 2006 20:24:51 +0000 (GMT) (envelope-from sergey.lungu@gmail.com) Received: by uproxy.gmail.com with SMTP id j3so94820ugf for ; Tue, 24 Jan 2006 12:24:50 -0800 (PST) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:date:from:to:subject:message-id:in-reply-to:references:x-mailer:mime-version:content-type:content-transfer-encoding; b=aSBFlE2n58nJLUMLBps7wzD2sIgQEZybMHytFs5LuxUqPxcZQ9G7tvbBs45hFz6BL+QDIjrztbyNWqD0wNLmuQ7BeA8fUGERt/TMYTSwvEOVeLHYRR0UrknX+R5Eu7MrO6cBN3RSTv6/D1XgsfxfYDwlcqSb6zvwwSRbOxNaNn0= Received: by 10.66.234.14 with SMTP id g14mr3104555ugh; Tue, 24 Jan 2006 12:24:50 -0800 (PST) Received: from ogre.obchaga.org ( [195.225.128.22]) by mx.gmail.com with ESMTP id j1sm3656471ugf.2006.01.24.12.24.48; Tue, 24 Jan 2006 12:24:49 -0800 (PST) Date: Tue, 24 Jan 2006 23:24:43 +0300 From: Sergey Lungu To: freebsd-geom@freebsd.org Message-Id: <20060124232443.2e252b87.sergey.lungu@gmail.com> In-Reply-To: <20060122192257.273734cf.sergey.lungu@gmail.com> References: <20060122192257.273734cf.sergey.lungu@gmail.com> X-Mailer: Sylpheed version 2.0.4 (GTK+ 2.8.10; i386-portbld-freebsd6.0) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Subject: Re: GEOM stripe + concat X-BeenThere: freebsd-geom@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: GEOM-specific discussions and implementations List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 24 Jan 2006 20:24:53 -0000 On Sun, 22 Jan 2006 19:22:57 +0300 I wrote: > Hello, > > I have FreeBSD 6.0-RELEASE running on my FTP server. There are three > disks on that box: two identical 120GB and one 300GB. I am using > gvinum for stripping between first two disks. I am going to give > gstripe a try, sine gvinum is too unstable. Since nobody has answered my question, possibly it was too silly, I decided to experiment a bit. I'll answer my questions: > Am I able to concatenate created stripe with 300GB disk? Yes, you can! > And is it wise at all? I have made some simple benchmarking on three different geometries. Legend: a * b - stripping between a and b a + b - concatenation of a and b ad1 - 120GB disk ad2 - 120GB disk ad3 - 300GB disk I tried to upload and then download a 700MB movie. Here are my results: ad1 * ad2: Uploading: 1m8.406s Downloading: 1m4.656s ad1 * ad2 + ad3: Uploading: 1m4.115s Downloading: 1m4.962s ad1 + ad2 + ad3: Uploading: 1m4.110s Downloading: 1m4.971s Conclusion: There is no big difference between all this geometries in FTP context, or possibly there are some on high load!? -- Sergey Lungu Fuzzy project objectives are used to avoid the embarrassment of estimating the corresponding costs.