From owner-freebsd-questions@FreeBSD.ORG Wed Feb 27 18:25:11 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 F24AA1065673 for ; Wed, 27 Feb 2008 18:25:11 +0000 (UTC) (envelope-from fbsd.questions@rachie.is-a-geek.net) Received: from snoogles.rachie.is-a-geek.net (rachie.is-a-geek.net [66.230.99.27]) by mx1.freebsd.org (Postfix) with ESMTP id C003E8FC1A for ; Wed, 27 Feb 2008 18:25:11 +0000 (UTC) (envelope-from fbsd.questions@rachie.is-a-geek.net) Received: from localhost (localhost [127.0.0.1]) by snoogles.rachie.is-a-geek.net (Postfix) with ESMTP id 0BE541CE83; Wed, 27 Feb 2008 09:16:11 -0900 (AKST) From: Mel To: freebsd-questions@freebsd.org Date: Wed, 27 Feb 2008 19:16:10 +0100 User-Agent: KMail/1.9.7 References: <3b93bd110802260825s26247ee9oe38fa3ad78632d15@mail.gmail.com> <47C59D51.6000400@bellsouth.net> <3b93bd110802270956y117a4490u67ded3c9887776c0@mail.gmail.com> In-Reply-To: <3b93bd110802270956y117a4490u67ded3c9887776c0@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200802271916.10653.fbsd.questions@rachie.is-a-geek.net> Cc: Natham , Lyle Miller Subject: Re: Performance Issues on 6.3 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, 27 Feb 2008 18:25:12 -0000 On Wednesday 27 February 2008 18:56:15 Natham wrote: > On Wed, Feb 27, 2008 at 12:26 PM, Lyle Miller wrote: > > Natham wrote: > > > Hi i have a server with four disk atached, 2 raid 0 and 2 raid 1. Im > > > getting a low performance on file trasfers over network to windows > > > clients i get only about 30MB/s. Looking at gstat i got both disk are > > > trasfering 15000kBps each over a gigabit connection(client and > > > server). How can improve performance for my data server? > > > > i dont know if this will eventually help in your case ..... > > > > ... but .... > > > > i noticed a link on www.freebsd.org under 'in the media' > > > > look for 'squeeze your gigabit nic for top performance' dated 2007-10. > > > > gl > > Yes, i did everything it recomends. Tahnk you How to rule out the raid: 1) create a memory disk, in your case I'd go with 256MB if you can spare the memory. 2) Put a file on it, size ~210MB (7 * 30MB/s, should give ample time to let the transferrate go up) 3) share it via samba 4) Download it through one of the clients If the transfer rate is still low, it's not the raid. Install a bandwidth monitor then (net/bmon for example) and see if the traffic is actually higher then the 30MB/s, eating the rest of your bandwidth, investigate samba issues, switches, clients (are they really configured Gbit?). If the transfer rate is much higher, you're pretty safe to assume it's a disk issue. Manpage to read: mdconfig(8) - choose swap backed btw. -- Mel Problem with today's modular software: they start with the modules and never get to the software part.