From owner-freebsd-current@FreeBSD.ORG Fri Nov 13 02:13:25 2009 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id BB5EC1065672; Fri, 13 Nov 2009 02:13:25 +0000 (UTC) (envelope-from sfourman@gmail.com) Received: from mail-px0-f178.google.com (mail-px0-f178.google.com [209.85.216.178]) by mx1.freebsd.org (Postfix) with ESMTP id 8199D8FC1F; Fri, 13 Nov 2009 02:13:25 +0000 (UTC) Received: by pxi8 with SMTP id 8so2002117pxi.27 for ; Thu, 12 Nov 2009 18:13:25 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:cc:content-type :content-transfer-encoding; bh=pdR/L5uuKYhJ9BdjaVI+9raV6O1gSGtQYxw+R8lVaGo=; b=bpHWtHNDQdvOlQGe5N00YClOHMtN46yaCnij+OEPDHDu6WcQJ7seog4CBUZIZ868bd vuLzEewkMmK8NCs2I7ObaMyWVbzZ3YqB6GH+H1v4vg+VjGP+w6KMeuZciaGy/PDIVaZD V3fzUGP5DhTIMuckgjBBhbKXyR/MQWVaEuTvM= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; b=qL6UGYoiBfRDno6lvbD4bIOoUnoWrLSSoxlwhVzOb8mXnXgBAx0SfdPuAv1+L+MPuV 94lCrly9NY2BJtynlP0hrrlys6z6HHNyteODB5gP1+c1GSXZFt0N3YGsDo6U7Ju1YTBl iFqkriOK8sTNOiwn3ONfAJw+cnbawiaWpQDOM= MIME-Version: 1.0 Received: by 10.143.154.33 with SMTP id g33mr390739wfo.300.1258078405047; Thu, 12 Nov 2009 18:13:25 -0800 (PST) In-Reply-To: References: <11167f520911111050j36dd94far667c81e6f5c18e69@mail.gmail.com> <9bbcef730911111352t12188bdajbca71bcf35a5beb5@mail.gmail.com> <11167f520911121044l74744c30u5a4d9ca008ab863c@mail.gmail.com> <11167f520911121101o403751ddmb544dfaf1c61bf1e@mail.gmail.com> <11167f520911121339y4161a1a2sae8b6196c3b7a1fb@mail.gmail.com> Date: Thu, 12 Nov 2009 20:13:24 -0600 Message-ID: <11167f520911121813v29441ac4v2e3dfa6f4386ba4e@mail.gmail.com> From: "Sam Fourman Jr." To: Scott Ullrich Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: Rick Macklem , Dan Nelson , Artem Belevich , freebsd-current@freebsd.org, Ivan Voras Subject: Re: Help ZFS FreeBSD 8.0 RC2 Write performance issue X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 13 Nov 2009 02:13:25 -0000 On Thu, Nov 12, 2009 at 6:43 PM, Scott Ullrich wrote: > On Thu, Nov 12, 2009 at 4:39 PM, Sam Fourman Jr. wro= te: >> if you wouldn't mind posting, what kind of NFS performance can you achie= ve? >> >> my application is office Fileserver (the clients are FreeBSD 8 >> diskless PXE boot) >> so idk if it is possible to achieve gigabit NFS performance. >> iperf is able to get ~970mbit from a client to the NFS server. >> I realize that disk i/o is the limiting factor so I bought 6x SATA2 >> disks and a Areca card > > I was getting getting bursts up to 120Megaqbyte a sec but it would > normally write at about 80MB/sec sustained. =A0With was great for the > boxes configuration. =A0It's an old Dell 2950. and this was with ZFS over NFS? My problem and the reason I started this th= read I am getting less than 20MB/sec writes, with 6 SATAII disks attached to a single Arcera 1130 card so you are suggesting that it is possible that 2x SSD disks would get me the other 60MB/sec Sam Fourman Jr.