From owner-freebsd-stable@FreeBSD.ORG Thu Apr 14 14:21:59 2011 Return-Path: Delivered-To: freebsd-stable@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 7585E106566C for ; Thu, 14 Apr 2011 14:21:59 +0000 (UTC) (envelope-from hausen@punkt.de) Received: from kagate.punkt.de (kagate.punkt.de [217.29.33.131]) by mx1.freebsd.org (Postfix) with ESMTP id F1E1C8FC1A for ; Thu, 14 Apr 2011 14:21:58 +0000 (UTC) Received: from hugo10.ka.punkt.de ([217.29.45.10]) by gate1.intern.punkt.de with ESMTP id p3EELvik076150 for ; Thu, 14 Apr 2011 16:21:57 +0200 (CEST) Received: from [217.29.45.147] ([217.29.45.147]) by hugo10.ka.punkt.de (8.14.2/8.14.2) with ESMTP id p3EELvh9048979 for ; Thu, 14 Apr 2011 16:21:57 +0200 (CEST) (envelope-from hausen@punkt.de) Content-Type: text/plain; charset=iso-8859-1 Mime-Version: 1.0 (Apple Message framework v1084) From: "Patrick M. Hausen" In-Reply-To: <1846D8C1-99F9-4258-A428-14E7D5CF58E1@punkt.de> Date: Thu, 14 Apr 2011 16:21:57 +0200 Content-Transfer-Encoding: quoted-printable Message-Id: References: <20110402094038.GA3521@icarus.home.lan> <3B6BFB01-3AC4-432B-8713-6CED09FFF9A2@punkt.de> <20110403110351.GA30312@icarus.home.lan> <4D9877E7.6050807@FreeBSD.org> <1846D8C1-99F9-4258-A428-14E7D5CF58E1@punkt.de> To: FreeBSD Stable X-Mailer: Apple Mail (2.1084) Cc: Subject: Re: ahci.ko in RELENG_8_2, what about atacontrol cap? X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 14 Apr 2011 14:21:59 -0000 Hi, all, Am 03.04.2011 um 15:44 schrieb Patrick M. Hausen: > Am 03.04.2011 um 15:36 schrieb Alexander Motin: >> I've noticed that some RAID BIOS'es disable write cache on their = disks. ata(4) enabled cache in such cases, but CAM doesn't now. I'll = take care of it for ATA. For now you can manage it via `camcontrol cmd`. >=20 > I understand. So probably my disks' WC is set to off in the > system BIOS setup - wich is changed upon boot by ata, but > not by ahci/cam. I changed the setting in the BIOS setup to "write cache enabled" and presto - write cache with ahci. Thanks for the hints, Patrick --=20 punkt.de GmbH * Kaiserallee 13a * 76133 Karlsruhe Tel. 0721 9109 0 * Fax 0721 9109 100 info@punkt.de http://www.punkt.de Gf: J=FCrgen Egeling AG Mannheim 108285