From owner-freebsd-questions@FreeBSD.ORG Wed Oct 1 09:21:20 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 888AE1065689; Wed, 1 Oct 2008 09:21:20 +0000 (UTC) (envelope-from wojtek@wojtek.tensor.gdynia.pl) Received: from wojtek.tensor.gdynia.pl (wojtek.tensor.gdynia.pl [IPv6:2001:4070:101:2::1]) by mx1.freebsd.org (Postfix) with ESMTP id 8AC1A8FC2C; Wed, 1 Oct 2008 09:21:19 +0000 (UTC) (envelope-from wojtek@wojtek.tensor.gdynia.pl) Received: from wojtek.tensor.gdynia.pl (localhost [IPv6:::1]) by wojtek.tensor.gdynia.pl (8.14.2/8.14.2) with ESMTP id m919LExs008289; Wed, 1 Oct 2008 11:21:14 +0200 (CEST) (envelope-from wojtek@wojtek.tensor.gdynia.pl) Received: from localhost (wojtek@localhost) by wojtek.tensor.gdynia.pl (8.14.2/8.14.2/Submit) with ESMTP id m919LESn008286; Wed, 1 Oct 2008 11:21:14 +0200 (CEST) (envelope-from wojtek@wojtek.tensor.gdynia.pl) Date: Wed, 1 Oct 2008 11:21:14 +0200 (CEST) From: Wojciech Puchar To: Matthew Seaman In-Reply-To: <48E33CC6.7050504@infracaninophile.co.uk> Message-ID: <20081001111911.U8258@wojtek.tensor.gdynia.pl> References: <1222681181.48e0a25d094c3@www.inbox.lv> <48E21C66.8080407@FreeBSD.org> <20080930161407.E16761@wojtek.tensor.gdynia.pl> <20080930205435.B20033@wojtek.tensor.gdynia.pl> <00ee01c92346$69508fa0$3bf1aee0$@com> <20080930224447.GA58065@icarus.home.lan> <20081001083637.C7317@wojtek.tensor.gdynia.pl> <48E33CC6.7050504@infracaninophile.co.uk> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Cc: Jeremy Chadwick , Danny Do , freebsd-questions@freebsd.org Subject: Re: Optimal File System config for 2.5TB RAID5 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, 01 Oct 2008 09:21:20 -0000 > | | the simple answer is that software RAID on todays computers vastly | > outperforms ANY hardware raid solution, maybe except the ones for 10000$ | or > more. > > You're basically correct, but I think you're overestimating the price of > a good RAID controller. no. please give me example of any RAID hardware below 10000$ that WILL be faster than properly configure software RAID solution under FreeBSD with same amount of same disks. i mean faster under normal unix-like load, which is lots of parallel accesses to same or different things, not simple tests. there are NONE.