From owner-freebsd-stable@FreeBSD.ORG Tue Oct 26 10:41:42 2010 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 584A9106564A for ; Tue, 26 Oct 2010 10:41:42 +0000 (UTC) (envelope-from jdc@koitsu.dyndns.org) Received: from qmta05.emeryville.ca.mail.comcast.net (qmta05.emeryville.ca.mail.comcast.net [76.96.30.48]) by mx1.freebsd.org (Postfix) with ESMTP id 3B7058FC08 for ; Tue, 26 Oct 2010 10:41:41 +0000 (UTC) Received: from omta09.emeryville.ca.mail.comcast.net ([76.96.30.20]) by qmta05.emeryville.ca.mail.comcast.net with comcast id PNeM1f0010S2fkCA5NhhNN; Tue, 26 Oct 2010 10:41:41 +0000 Received: from koitsu.dyndns.org ([98.248.41.155]) by omta09.emeryville.ca.mail.comcast.net with comcast id PNhg1f00C3LrwQ28VNhg7X; Tue, 26 Oct 2010 10:41:41 +0000 Received: by icarus.home.lan (Postfix, from userid 1000) id 513B09B422; Tue, 26 Oct 2010 03:41:40 -0700 (PDT) Date: Tue, 26 Oct 2010 03:41:40 -0700 From: Jeremy Chadwick To: "Patrick M. Hausen" Message-ID: <20101026104140.GA32172@icarus.home.lan> References: <20101026093325.GE7744@hugo10.ka.punkt.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20101026093325.GE7744@hugo10.ka.punkt.de> User-Agent: Mutt/1.5.21 (2010-09-15) Cc: freebsd-stable@freebsd.org Subject: Re: ATA error messages 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: Tue, 26 Oct 2010 10:41:42 -0000 On Tue, Oct 26, 2010 at 11:33:25AM +0200, Patrick M. Hausen wrote: > recently I set up a FreeNAS box: > > FreeBSD freenas.intern.punkt.de 7.3-RELEASE-p3 FreeBSD 7.3-RELEASE-p3 #0: Sun Oct 17 12:57:33 CEST 2010 root@dev.freenas.org:/usr/obj/freenas/usr/src/sys/FREENAS-amd64 amd64 > > This is a HP/Compaq Microserver (Proliant N36L). After setting up > the system with 4 used 500 GB Seagate drives to find out if FreeNAS > would fit our needs, I replaced the drives with WDC RE4 2 TB > (WD2002FYPS) and put the system in production to store backups. > > Yesterday the file system perfomance suddenly came to a crawl > and the system log fills with entries like this: > > ad8: TIMEOUT - READ_DMA48 retrying (1 retry left) LBA=3907027968 > ad8: WARNING - SETFEATURES SET TRANSFER MODE taskqueue timeout - completing request directly > ad8: WARNING - SETFEATURES SET TRANSFER MODE taskqueue timeout - completing request directly > ad8: WARNING - SETFEATURES ENABLE RCACHE taskqueue timeout - completing request directly > ad8: WARNING - SETFEATURES ENABLE WCACHE taskqueue timeout - completing request directly > ad8: WARNING - SET_MULTI taskqueue timeout - completing request directly > ... > > Only one of the for drives shows these timeouts. > > My question: does this necessarily mean I have an isolated problem > with that particular drive, since the other three are running just fine, > or could there still be someting more fundamental going on? It's impossible to tell at this stage. Please install ports/sysutils/smartmontools (version 5.40) and provide the output from "smartctl -a /dev/ad8". We'll start there. Also, you might be interested in using ahci.ko (not ataachi.ko) since your controller supports AHCI. You'd gain NCQ capability and be given some of the perks of using CAM. Your disks would be renamed from things like ad4 to ada0 and ad6 to ada1, however. Just FYI. This is unrelated to your problem though. -- | Jeremy Chadwick jdc@parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP: 4BD6C0CB |