From owner-freebsd-hardware@FreeBSD.ORG Tue Oct 28 12:24:40 2008 Return-Path: Delivered-To: freebsd-hardware@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 4C4E7106567D; Tue, 28 Oct 2008 12:24:40 +0000 (UTC) (envelope-from fbsd@dannysplace.net) Received: from mail.dannysplace.net (mail.dannysplace.net [213.133.54.210]) by mx1.freebsd.org (Postfix) with ESMTP id 0301B8FC23; Tue, 28 Oct 2008 12:24:39 +0000 (UTC) (envelope-from fbsd@dannysplace.net) Received: from 203-206-171-212.perm.iinet.net.au ([203.206.171.212] helo=[192.168.10.10]) by mail.dannysplace.net with esmtpsa (TLSv1:AES256-SHA:256) (Exim 4.69 (FreeBSD)) (envelope-from ) id 1Kunci-000KkJ-KG; Tue, 28 Oct 2008 22:24:39 +1000 Message-ID: <4907048D.6080800@dannysplace.net> Date: Tue, 28 Oct 2008 22:24:45 +1000 From: Danny Carroll User-Agent: Thunderbird 2.0.0.17 (Windows/20080914) MIME-Version: 1.0 To: Jeremy Chadwick References: <20081026125017.GA88016@icarus.home.lan> <4906F123.30908@dannysplace.net> <20081028121914.GB48941@icarus.home.lan> In-Reply-To: <20081028121914.GB48941@icarus.home.lan> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Authenticated-User: danny X-Authenticator: plain X-Sender-Verify: SUCCEEDED (sender exists & accepts mail) X-Exim-Version: 4.69 (build at 08-Jul-2008 08:59:40) X-Date: 2008-10-28 22:24:37 X-Connected-IP: 203.206.171.212:3816 X-Message-Linecount: 25 X-Body-Linecount: 11 X-Message-Size: 1074 X-Body-Size: 357 X-Received-Count: 1 X-Recipient-Count: 3 X-Local-Recipient-Count: 3 X-Local-Recipient-Defer-Count: 0 X-Local-Recipient-Fail-Count: 0 X-SA-Exim-Connect-IP: 203.206.171.212 X-SA-Exim-Rcpt-To: koitsu@FreeBSD.org, spork@bway.net, freebsd-hardware@freebsd.org X-SA-Exim-Mail-From: fbsd@dannysplace.net X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on ferrari.dannysplace.net X-Spam-Level: X-Spam-Status: No, score=0.2 required=8.0 tests=ALL_TRUSTED,AWL,TVD_RCVD_IP autolearn=disabled version=3.2.5 X-SA-Exim-Version: 4.2 X-SA-Exim-Scanned: Yes (on mail.dannysplace.net) Cc: Charles Sprickman , freebsd-hardware@freebsd.org Subject: Re: PCI-X SATA Card + Server Recommendation X-BeenThere: freebsd-hardware@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: fbsd@dannysplace.net List-Id: General discussion of FreeBSD hardware List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 28 Oct 2008 12:24:40 -0000 Jeremy Chadwick wrote: > This has been discussed recently on -hardware. I will stand firm on my > statement: don't disable write caching on disks. Ok, but what about the write caching on the array controller. Is it for writes in JBOD mode or simply when configured as an array? Just trying to figure out if I should be budgeting for a BBU as well. -D