From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S267425AbUHPHls (ORCPT ); Mon, 16 Aug 2004 03:41:48 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265743AbUHPHls (ORCPT ); Mon, 16 Aug 2004 03:41:48 -0400 Received: from gw-oleane.hubxpress.net ([81.80.52.129]:10935 "EHLO yoda.hubxpress.net") by vger.kernel.org with ESMTP id S267425AbUHPHld (ORCPT ); Mon, 16 Aug 2004 03:41:33 -0400 From: "Sylvain COUTANT" To: "'Tom Sightler'" Cc: "'Matt Domsch'" , "'Linux-Kernel'" Subject: RE: High CPU usage (up to server hang) under heavy I/O load Date: Sun, 15 Aug 2004 22:30:57 +0200 Organization: ILLICOM MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Office Outlook, Build 11.0.5510 In-Reply-To: <1092454748.3816.11.camel@localhost.localdomain> X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1441 Thread-Index: AcSBsHm+73occx3iT0mgQ2UkYb8I+wBVYXNQ Message-Id: <20040815203153.3EB913074E@illicom.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org > What driver are you using for the PERC? Megaraid "2". As far as I know, in newer kernels, this is the only one compiled in. We have had several problems with the previous one. Also, Matt Domsch's page state the exact versions you need depending on your system. Our 1750's work very well using RAID PERC4/DI under 2.4.26's megaraid driver. Although they are not really stressed ... > I've been wanting to try the 'megaraid2' driver Hopefully, Matt will send his advice on the subject, but I think you should try this asap. Sylvain.