From owner-freebsd-fs@FreeBSD.ORG Fri Dec 19 17:30:29 2008 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id F348A1065674 for ; Fri, 19 Dec 2008 17:30:28 +0000 (UTC) (envelope-from zbeeble@gmail.com) Received: from yx-out-2324.google.com (yx-out-2324.google.com [74.125.44.28]) by mx1.freebsd.org (Postfix) with ESMTP id A570B8FC1E for ; Fri, 19 Dec 2008 17:30:28 +0000 (UTC) (envelope-from zbeeble@gmail.com) Received: by yx-out-2324.google.com with SMTP id 8so1091446yxb.13 for ; Fri, 19 Dec 2008 09:30:27 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:to :subject:cc:in-reply-to:mime-version:content-type:references; bh=YxbULAtCe5fcqIMtR0tdtplkv0zcm6W4kllfOOBZc8Q=; b=ioI4QzblXy4xG+KoGoRRZOcW3n7d9lOst1Y4uTF8SUeNlh1PdZF+OIKLp87v7NDlUv PuDJSYjQsA96ezkZnDf+j068483Opjo5RcoM/9OWPjyK4ZSc4QPizVSJ+MEWseGGo6ih R2Z26agGYoo1Hamt2q4N9x6NeYoh3WW52nRbU= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version :content-type:references; b=xsQBExTmWtEoJDyjQS8ckwZK09hpaCdF2OuePY8fs8gKOCC/yYdR9fNVBkYib0RutT 79h0aaKwc17dXLxG7EQNVimUE40Aov64CJ8OJSRc9YClBKwS1yWaQE1k26bJzXLwgR0h mkM0FvwqIaFPC4WG52Rvpdk5UloMjMdRGwF18= Received: by 10.151.108.15 with SMTP id k15mr5937822ybm.179.1229707827794; Fri, 19 Dec 2008 09:30:27 -0800 (PST) Received: by 10.151.130.10 with HTTP; Fri, 19 Dec 2008 09:30:27 -0800 (PST) Message-ID: <5f67a8c40812190930s51353898w2c8479b6afc25c8b@mail.gmail.com> Date: Fri, 19 Dec 2008 12:30:27 -0500 From: "Zaphod Beeblebrox" To: "James R. Van Artsdalen" In-Reply-To: <494B61F7.3030904@jrv.org> MIME-Version: 1.0 References: <22C8092E-210F-4E91-AA09-CFD38966975C@spry.com> <494B61F7.3030904@jrv.org> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: freebsd-fs@freebsd.org Subject: Re: ZFS performance gains real or imaginary? X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 19 Dec 2008 17:30:29 -0000 On Fri, Dec 19, 2008 at 3:57 AM, James R. Van Artsdalen < james-freebsd-fs2@jrv.org> wrote: > There's also the issue of cost: once SATA port multiplier support works > in FreeBSD it will be very practical to build cheap ~15TB servers for a > small business using ZFS. It's certainly not bad already. There are consumer cases that will take 15 to 18 hard drives internally. There are motherboards with 6 or 8 SATA ports. And there are simple SATA cards that are cheap enough these days. I think I got a 4 port for $40 for my machine. I see "buy it now"'s for 8 port cards around $100 on eBay. 16 ports * 1T drives is ~15TB. Make it 1.5T drives and RAID-Z2 and you have more protection and a bit more space.