From owner-freebsd-fs@FreeBSD.ORG Fri Apr 20 03:45:25 2007 Return-Path: X-Original-To: fs@freebsd.org Delivered-To: freebsd-fs@FreeBSD.ORG Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id F0CB716A400; Fri, 20 Apr 2007 03:45:25 +0000 (UTC) (envelope-from des@des.no) Received: from tim.des.no (tim.des.no [194.63.250.121]) by mx1.freebsd.org (Postfix) with ESMTP id B003B13C484; Fri, 20 Apr 2007 03:45:25 +0000 (UTC) (envelope-from des@des.no) Received: from tim.des.no (localhost [127.0.0.1]) by spam.des.no (Postfix) with ESMTP id D8820207E; Fri, 20 Apr 2007 05:45:21 +0200 (CEST) X-Spam-Tests: AWL X-Spam-Learn: disabled X-Spam-Score: 0.0/3.0 X-Spam-Checker-Version: SpamAssassin 3.1.7 (2006-10-05) on tim.des.no Received: from dwp.des.no (des.no [80.203.243.180]) by smtp.des.no (Postfix) with ESMTP id 595C52049; Fri, 20 Apr 2007 05:45:21 +0200 (CEST) Received: by dwp.des.no (Postfix, from userid 1001) id 17269545F; Fri, 20 Apr 2007 05:45:21 +0200 (CEST) From: des@des.no (Dag-Erling =?iso-8859-1?Q?Sm=F8rgrav?=) To: rick-freebsd@kiwi-computer.com References: <20070418104155.GA31727@eschew.pusen.org> <86hcrdlqak.fsf@dwp.des.no> <20070418144103.GB31727@eschew.pusen.org> <20070418155156.GB20441@keira.kiwi-computer.com> <20070418180200.GA32061@eschew.pusen.org> <86odlku5xg.fsf@dwp.des.no> <20070419173316.GA57227@keira.kiwi-computer.com> <4627EC02.8070103@nokia.com> <4627F7BE.5090606@mawer.org> <20070420004131.GA65715@keira.kiwi-computer.com> Date: Fri, 20 Apr 2007 05:45:20 +0200 In-Reply-To: <20070420004131.GA65715@keira.kiwi-computer.com> (Rick C. Petty's message of "Thu, 19 Apr 2007 19:41:31 -0500") Message-ID: <86ejmfbtf3.fsf@dwp.des.no> User-Agent: Gnus/5.110006 (No Gnus v0.6) Emacs/21.3 (berkeley-unix) MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Cc: fs@freebsd.org, piso@freebsd.org Subject: Re: ZFS + replacing failing hard-drive. X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 20 Apr 2007 03:45:26 -0000 "Rick C. Petty" writes: > I'm reluctant to point fingers at the drives (although this is often a go= od > first guess).. I have access to a few dozen disks from two separate SATA > batches. I've noticed that when the identical drives are on the same > Promise controller, FreeBSD reports DMA timeouts occasionally. Interesting. All my DMA timeout issues have indeed been with groups of identical drives (though different groups from different manufacturers) DES --=20 Dag-Erling Sm=F8rgrav - des@des.no