From owner-freebsd-hackers@FreeBSD.ORG Mon Jan 21 11:15:27 2013 Return-Path: Delivered-To: freebsd-hackers@FreeBSD.org Received: from mx1.freebsd.org (mx1.FreeBSD.org [8.8.178.115]) by hub.freebsd.org (Postfix) with ESMTP id 792DFBBF; Mon, 21 Jan 2013 11:15:27 +0000 (UTC) (envelope-from wojtek@wojtek.tensor.gdynia.pl) Received: from wojtek.tensor.gdynia.pl (wojtek.tensor.gdynia.pl [188.252.31.196]) by mx1.freebsd.org (Postfix) with ESMTP id D42B797F; Mon, 21 Jan 2013 11:15:26 +0000 (UTC) Received: from wojtek.tensor.gdynia.pl (localhost [127.0.0.1]) by wojtek.tensor.gdynia.pl (8.14.5/8.14.5) with ESMTP id r0LBFOop001722; Mon, 21 Jan 2013 12:15:24 +0100 (CET) (envelope-from wojtek@wojtek.tensor.gdynia.pl) Received: from localhost (wojtek@localhost) by wojtek.tensor.gdynia.pl (8.14.5/8.14.5/Submit) with ESMTP id r0LBFOgT001719; Mon, 21 Jan 2013 12:15:24 +0100 (CET) (envelope-from wojtek@wojtek.tensor.gdynia.pl) Date: Mon, 21 Jan 2013 12:15:24 +0100 (CET) From: Wojciech Puchar To: Don Lewis Subject: Re: IBM blade server abysmal disk write performances In-Reply-To: <201301200124.r0K1OAld019768@gw.catspoiler.org> Message-ID: References: <201301200124.r0K1OAld019768@gw.catspoiler.org> User-Agent: Alpine 2.00 (BSF 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.2.7 (wojtek.tensor.gdynia.pl [127.0.0.1]); Mon, 21 Jan 2013 12:15:24 +0100 (CET) Cc: scott4long@yahoo.com, freebsd-hackers@FreeBSD.org, dieterbsd@gmail.com, scottl@FreeBSD.org, gibbs@FreeBSD.org, mjacob@FreeBSD.org X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 21 Jan 2013 11:15:27 -0000 > I've had my share of sudden UPS failures over the years. Probably more everything can fail. That's why serious sysadmins do proper backup, no matter what "safety features" are used in their servers.