From owner-freebsd-stable@FreeBSD.ORG Fri Jan 21 07:49:24 2005 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 6F3FF16A4CE for ; Fri, 21 Jan 2005 07:49:24 +0000 (GMT) Received: from linda-2.paradise.net.nz (bm-2a.paradise.net.nz [202.0.58.21]) by mx1.FreeBSD.org (Postfix) with ESMTP id DA96543D46 for ; Fri, 21 Jan 2005 07:49:23 +0000 (GMT) (envelope-from markir@paradise.net.nz) Received: from smtp-1.paradise.net.nz (smtp-1a.paradise.net.nz [202.0.32.194]) by linda-2.paradise.net.nz (Paradise.net.nz) with ESMTP id <0IAN001F8PQA2G@linda-2.paradise.net.nz> for freebsd-stable@freebsd.org; Fri, 21 Jan 2005 20:49:22 +1300 (NZDT) Received: from [192.168.1.11] (218-101-14-86.paradise.net.nz [218.101.14.86]) by smtp-1.paradise.net.nz (Postfix) with ESMTP id 1CB3E828A3; Fri, 21 Jan 2005 20:49:22 +1300 (NZDT) Date: Fri, 21 Jan 2005 20:53:12 +1300 From: Mark Kirkwood In-reply-to: <20050120213906.GC67721@decibel.org> To: "Jim C. Nasby" Message-id: <41F0B4E8.9090507@paradise.net.nz> MIME-version: 1.0 Content-type: text/plain; format=flowed; charset=us-ascii Content-transfer-encoding: 7bit X-Accept-Language: en-us, en User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.7.2) Gecko/20041016 References: <20050120213906.GC67721@decibel.org> cc: freebsd-stable@freebsd.org Subject: Re: Disabling write-behind on IDE drives, and SMART X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 21 Jan 2005 07:49:24 -0000 Jim C. Nasby wrote: > Question one: how do I disable write caching on IDE drives? I know the > setting is hw.ata.wc=0, but where do I put that? In loader.conf? This is > FreeBSD 4.10, btw. > In /boot/loader.conf will do it. > Also, has any thought been given to making the default 0, like it is for > SCSI devices? I'm honestly surprised and disappointed that the default > is speed over data integrity. I think it was trialled in 4.3 then changed for 4.4 (according to the handbook, the performance hit was considered to be too high) best wishes Mark