From owner-freebsd-performance@FreeBSD.ORG Wed Oct 19 15:18:10 2005 Return-Path: X-Original-To: freebsd-performance@freebsd.org Delivered-To: freebsd-performance@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 52E7716A41F for ; Wed, 19 Oct 2005 15:18:10 +0000 (GMT) (envelope-from killing@multiplay.co.uk) Received: from multiplay.co.uk (core6.multiplay.co.uk [85.236.96.23]) by mx1.FreeBSD.org (Postfix) with ESMTP id AD67243D45 for ; Wed, 19 Oct 2005 15:18:09 +0000 (GMT) (envelope-from killing@multiplay.co.uk) Received: from stevenp4 ([193.123.241.40]) by multiplay.co.uk (multiplay.co.uk [85.236.96.23]) (MDaemon.PRO.v8.1.3.R) with ESMTP id md50001931553.msg for ; Wed, 19 Oct 2005 16:17:16 +0100 Message-ID: <01a901c5d4c0$32deaab0$7f06000a@int.mediasurface.com> From: "Steven Hartland" To: =?iso-8859-1?Q?Tulio_Guimar=E3es_da_Silva?= , References: <000801c5d434$579de280$b3db87d4@multiplay.co.uk><200510181620.13588.Peter_Losher@isc.org> <43564A56.1010602@pgt.mpt.gov.br><00ef01c5d4b4$b9bb0350$7f06000a@int.mediasurface.com> <43566014.3060604@pgt.mpt.gov.br> Date: Wed, 19 Oct 2005 16:17:20 +0100 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original Content-Transfer-Encoding: 8bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2670 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2670 X-Spam-Processed: multiplay.co.uk, Wed, 19 Oct 2005 16:17:17 +0100 (not processed: message from valid local sender) X-MDRemoteIP: 193.123.241.40 X-Return-Path: killing@multiplay.co.uk X-MDaemon-Deliver-To: freebsd-performance@freebsd.org X-MDAV-Processed: multiplay.co.uk, Wed, 19 Oct 2005 16:17:18 +0100 Cc: Subject: Re: SATA: RAID 5 controller recommendations X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 19 Oct 2005 15:18:10 -0000 No problem I was initially very impressed with this card, great throughput ( after tweaking ), easy install and cheap; but then this problem hit. It gets a DMA timeout on one of the disks which it then drops from the RAID5 unfortunately it then gets the same error on another disk and does the same at which point I obviously get a kernel panic. At first I thought it was a one off but now I have 100% reproducible scenario using rsync which will cause the driver to ditch the array. Tried all the usuals disk's replaced, cables replaced even controller replaced, as we had 2, but no joy :( Steve ----- Original Message ----- From: "Tulio Guimarăes da Silva" Wow! Nice to know, then. The only machine that uses a reasonable (not even high) amount of small writes is under RAID 1+0 (or 0+1, don´t remember). The other are mainly backup and department storage. I´m now warned. :P Thanks and sorry, ================================================ This e.mail is private and confidential between Multiplay (UK) Ltd. and the person or entity to whom it is addressed. In the event of misdirection, the recipient is prohibited from using, copying, printing or otherwise disseminating it or any information contained in it. In the event of misdirection, illegible or incomplete transmission please telephone (023) 8024 3137 or return the E.mail to postmaster@multiplay.co.uk.