From owner-freebsd-stable@FreeBSD.ORG Sun Feb 5 13:59:26 2006 Return-Path: X-Original-To: stable@freebsd.org 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 E50B916A420 for ; Sun, 5 Feb 2006 13:59:26 +0000 (GMT) (envelope-from Philippe.Pegon@crc.u-strasbg.fr) Received: from mailhost.u-strasbg.fr (mailhost.u-strasbg.fr [130.79.200.157]) by mx1.FreeBSD.org (Postfix) with ESMTP id 3DB6A43D48 for ; Sun, 5 Feb 2006 13:59:26 +0000 (GMT) (envelope-from Philippe.Pegon@crc.u-strasbg.fr) Received: from baal.u-strasbg.fr (baal.u-strasbg.fr [IPv6:2001:660:2402::41]) by mailhost.u-strasbg.fr (8.13.4/jtpda-5.5pre1) with ESMTP id k15DxNue036829 ; Sun, 5 Feb 2006 14:59:23 +0100 (CET) Received: from [127.0.0.1] (crc.u-strasbg.fr [IPv6:2001:660:2402:1001::1]) by baal.u-strasbg.fr (8.13.4/jtpda-5.5pre1) with ESMTP id k15DxKSd001904 ; Sun, 5 Feb 2006 14:59:22 +0100 Message-ID: <43E604A6.8030500@crc.u-strasbg.fr> Date: Sun, 05 Feb 2006 14:59:02 +0100 From: Philippe Pegon User-Agent: Mozilla Thunderbird 1.0.7 (X11/20060128) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Ivan Voras References: <43E52A89.4020700@fer.hr> <43E5DBD4.8010908@crc.u-strasbg.fr> <43E5DCC9.500@fer.hr> <43E5ED00.5030204@crc.u-strasbg.fr> <43E5F029.2010005@fer.hr> In-Reply-To: <43E5F029.2010005@fer.hr> Content-Type: text/plain; charset=ISO-8859-2; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV 0.88/1276/Sat Feb 4 16:29:35 2006 on mr7.u-strasbg.fr X-Virus-Scanned: ClamAV 0.88/1276/Sat Feb 4 16:29:35 2006 on baal.u-strasbg.fr X-Virus-Status: Clean X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-2.0.2 (mailhost.u-strasbg.fr [IPv6:2001:660:2402::157]); Sun, 05 Feb 2006 14:59:23 +0100 (CET) X-Spam-Status: No, score=-0.0 required=5.0 tests=NO_RELAYS autolearn=disabled version=3.1.0 X-Spam-Checker-Version: SpamAssassin 3.1.0 (2005-09-13) on mr7.u-strasbg.fr Cc: stable@freebsd.org Subject: Re: Compaq Proliant CISS slow writes 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, 05 Feb 2006 13:59:27 -0000 Ivan Voras wrote: > Philippe Pegon wrote: > >> If I remember correctly, you can see it at boot time. I don't know how >> to find it when FreeBSD is up. Maybe someone else knows it (if it's >> possible) ? > > > It doesn't mention cache when booting and initialising the array. I'm not sure, but I believe that the Smart Array 532 doesn't have write cache and doesn't support it : http://h18004.www1.hp.com/products/servers/proliantstorage/arraycontrollers/smartarray532/questionsanswers.html#11 and in the specs : http://h18004.www1.hp.com/products/quickspecs/10851_div/10851_div.html " 32MB Memory optimizes performance and data throughput. NOTE: 32 MB of DRAM used for code, transfer buffers, and non-battery backed read cache " -- Philippe Pegon