From owner-freebsd-questions@FreeBSD.ORG Thu Oct 2 03:39:01 2003 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 51EDA16A4BF for ; Thu, 2 Oct 2003 03:39:01 -0700 (PDT) Received: from smtp09.wxs.nl (smtp09.wxs.nl [195.121.6.38]) by mx1.FreeBSD.org (Postfix) with ESMTP id AC9E943F3F for ; Thu, 2 Oct 2003 03:38:59 -0700 (PDT) (envelope-from akruijff@www.kruijff.org) Received: from kruij557.speed.planet.nl (ipd50a97ba.speed.planet.nl [213.10.151.186]) by smtp09.wxs.nl (iPlanet Messaging Server 5.2 HotFix 1.14 (built Mar 18 2003)) with ESMTP id <0HM400I3LLFBPI@smtp09.wxs.nl> for freebsd-questions@freebsd.org; Thu, 02 Oct 2003 12:35:36 +0200 (MEST) Received: from Intranet.lan (akruijff@localhost [127.0.0.1]) h92AbXQL026194;akruijff@Intranet.lan) Received: (from akruijff@localhost) by Intranet.lan (8.12.8p1/8.12.8/Submit) id h92AbWE5026193; Thu, 02 Oct 2003 12:37:32 +0200 (CEST) Date: Thu, 02 Oct 2003 12:37:32 +0200 From: Alex de Kruijff In-reply-to: <5.1.1.6.2.20031001105657.00a77b08@vivaldi.pn.sinp.msu.ru> To: Sergei Vyshenski Message-id: <20031002103732.GG16713@dds.nl> MIME-version: 1.0 Content-type: text/plain; charset=us-ascii Content-transfer-encoding: 7BIT Content-disposition: inline User-Agent: Mutt/1.4.1i References: <5.1.1.6.2.20031001105657.00a77b08@vivaldi.pn.sinp.msu.ru> cc: freebsd-questions@freebsd.org Subject: Re: hw.ata.wc vs soft updates X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 02 Oct 2003 10:39:01 -0000 On Wed, Oct 01, 2003 at 11:21:44AM +0400, Sergei Vyshenski wrote: > Is it correct and/or clever to use BOTH > > 1) soft updates enabled and 2) hw.ata.wc=0 > > on FreeBSD-4.9 system? > > Will it enhance chances to have consistent disk > after power loss? Yes. That is the reason its disabled by defauld. > How much slower it will be compared to the case of > > 1) soft updates enabled and 2) hw.ata.wc=1 The difference can be noticed. So i guess 15 or 20%. However I have no experince what so ever with this. > Thanks in advance for any comment. > Sergei > > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org" -- Alex Articles based on solutions that I use: http://www.kruijff.org/alex/index.php?dir=docs/FreeBSD/