From owner-freebsd-fs@FreeBSD.ORG Thu Jul 4 08:13:12 2013 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) by hub.freebsd.org (Postfix) with ESMTP id 1A442D65; Thu, 4 Jul 2013 08:13:12 +0000 (UTC) (envelope-from prvs=1897fed9ea=killing@multiplay.co.uk) Received: from mail1.multiplay.co.uk (mail1.multiplay.co.uk [85.236.96.23]) by mx1.freebsd.org (Postfix) with ESMTP id 8FC81164A; Thu, 4 Jul 2013 08:13:11 +0000 (UTC) Received: from r2d2 ([82.69.141.170]) by mail1.multiplay.co.uk (mail1.multiplay.co.uk [85.236.96.23]) (MDaemon PRO v10.0.4) with ESMTP id md50004718338.msg; Thu, 04 Jul 2013 09:13:09 +0100 X-Spam-Processed: mail1.multiplay.co.uk, Thu, 04 Jul 2013 09:13:09 +0100 (not processed: message from valid local sender) X-MDDKIM-Result: neutral (mail1.multiplay.co.uk) X-MDRemoteIP: 82.69.141.170 X-Return-Path: prvs=1897fed9ea=killing@multiplay.co.uk X-Envelope-From: killing@multiplay.co.uk Message-ID: <201D836AD9A843D089DCAF0A09A707F9@multiplay.co.uk> From: "Steven Hartland" To: References: <51C5B4EE.3010601@growveg.net> <81EDE2A7D67241DAB985C38662DA57DD@multiplay.co.uk> <51C5EAB0.7040009@growveg.net> <20130622191619.GA73246@icarus.home.lan> <12FB82C142E74924B27F4DBB642D0D1F@multiplay.co.uk> <1372904516.1427.4.camel@localhost> Subject: Re: Dell R710 with PERC H310. GPT issues and hardware raid or ZFS? Date: Thu, 4 Jul 2013 09:13:20 +0100 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5931 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6157 Cc: freebsd-fs@freebsd.org X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 04 Jul 2013 08:13:12 -0000 ----- Original Message ----- From: "Sean Bruno" > > Some mfi controllers actually have a JBOD option, if it does you'll > > be able to this controller if not watch out as using the RAID 0 option > will almost certainly cause you pain. > > > > mps as Jeremy has said is better option. > > I note that the H310 in a test R420 that I have does indeed have a JBOD > option. This presents a disk as /dev/mfisyspdX which is totally > befuddling. > > On our stable/9, we get crash and burns with kernel panics and data > corruption, but I haven't pursued it enough to be productive. I did > bump the machine to head and didn't see any difference. I've not used stable/9 myself but there are know issues with older mfi FW which causes TIMEOUTS which then results in panics on UFS. The fix is to upgrade your FW. In addition I've backed out the forced timeout on requests which was MFC'ed to stable/9 in r252554: http://svnweb.freebsd.org/base?view=revision&revision=252554 Regards Steve ================================================ 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 +44 845 868 1337 or return the E.mail to postmaster@multiplay.co.uk.