From owner-freebsd-questions@FreeBSD.ORG Sun Jun 20 01:18:53 2010 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 68A5D106566B for ; Sun, 20 Jun 2010 01:18:53 +0000 (UTC) (envelope-from amvandemore@gmail.com) Received: from mail-qy0-f182.google.com (mail-qy0-f182.google.com [209.85.216.182]) by mx1.freebsd.org (Postfix) with ESMTP id 216F88FC15 for ; Sun, 20 Jun 2010 01:18:52 +0000 (UTC) Received: by qyk11 with SMTP id 11so882154qyk.13 for ; Sat, 19 Jun 2010 18:18:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:received:in-reply-to :references:date:message-id:subject:from:to:cc:content-type; bh=BGT0VIZ5hNJLJq6uRDADv/Go09rpWNRlICKPhkMO1og=; b=jdILNGuNAPS/uFeKKUM/IFJ6cqATjNNfnoLuziBD+LAyjzwKvl5F/BBU2q1ZOfQ0IB lQ1Q7vUGcrvQSM6woH2BjihE51nkxYKu8z+ZWcdq1ff7Y1Ahht2kGCShMN/hZJprCTaD eUpCuxnOlpnN2JFvVifqkSzsmoWnpkFSKGeFk= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=Tix5yA2EO+S0YmVLq63WE/jdOtCxTfnfb0/ljpNsl6ngNXo5KgePtz2MKASf+6WeMG CI1JotOuqHaENZQv/acb/ZK+XVAhoq9x99tXtz/wIbsqNROFSH4mN0xYrNpQU17OLjL1 BmazJ11zuEERA6BFDJ7NRgkHzFb4OhjXZOd3k= MIME-Version: 1.0 Received: by 10.224.8.80 with SMTP id g16mr2008938qag.274.1276996732138; Sat, 19 Jun 2010 18:18:52 -0700 (PDT) Received: by 10.229.82.70 with HTTP; Sat, 19 Jun 2010 18:18:52 -0700 (PDT) In-Reply-To: <4C1AFFF5.1070000@nrdx.com> References: <4C1AFFF5.1070000@nrdx.com> Date: Sat, 19 Jun 2010 20:18:52 -0500 Message-ID: From: Adam Vande More To: Jerry Bell Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: freebsd-questions@freebsd.org Subject: Re: Need help with SATA disk timing out in 8.1 Beta X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 20 Jun 2010 01:18:53 -0000 On Fri, Jun 18, 2010 at 12:11 AM, Jerry Bell wrote: > I am having all sorts of problems with drives in a new server. > I have a 450G sata drive that hold my root partition, works great, no > issues. > I have a second, 1TB drive that has been all sorts of trouble. When > writing to this disk, I occasionally see errors like this: > > Jun 17 07:40:36 www3 kernel: ad8: WARNING - WRITE_DMA48 UDMA ICRC error > (retrying request) LBA=1564898207 > > I am at the end of my ability to troubleshoot this. Could this be a > problem with FreeBSD 8.1 beta and not the drives after all? > I have seen a reference to a patch for previous versions that increase the > DMA timeout time to 10 or 15 seconds, which fixes problems, but I am not > certain that would fix my particular issue. > You could use ahci which might workaround the issue and give you better performance. load it from /boot/loader.conf beware it will change names of detected devices, you may want to consider using glabel. -- Adam Vande More