From owner-freebsd-stable@FreeBSD.ORG Sun Apr 3 13:44:52 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 4792A1065675; Sun, 3 Apr 2011 13:44:52 +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 D28AE8FC0A; Sun, 3 Apr 2011 13:44:51 +0000 (UTC) Received: from hugo10.ka.punkt.de ([217.29.45.10]) by gate1.intern.punkt.de with ESMTP id p33DioLZ010034; Sun, 3 Apr 2011 15:44:50 +0200 (CEST) Received: from [217.29.46.3] ([217.29.46.3]) by hugo10.ka.punkt.de (8.14.2/8.14.2) with ESMTP id p33Dioet026259; Sun, 3 Apr 2011 15:44:50 +0200 (CEST) (envelope-from hausen@punkt.de) Mime-Version: 1.0 (Apple Message framework v1084) Content-Type: text/plain; charset=iso-8859-1 From: "Patrick M. Hausen" In-Reply-To: <4D9877E7.6050807@FreeBSD.org> Date: Sun, 3 Apr 2011 15:44:56 +0200 Content-Transfer-Encoding: quoted-printable Message-Id: <1846D8C1-99F9-4258-A428-14E7D5CF58E1@punkt.de> References: <20110402094038.GA3521@icarus.home.lan> <3B6BFB01-3AC4-432B-8713-6CED09FFF9A2@punkt.de> <20110403110351.GA30312@icarus.home.lan> <4D9877E7.6050807@FreeBSD.org> To: Alexander Motin X-Mailer: Apple Mail (2.1084) Cc: FreeBSD Stable , Jeremy Chadwick 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: Sun, 03 Apr 2011 13:44:52 -0000 Hi, 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`. 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. Thanks, 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=