From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id oANMCdpp016029 for ; Tue, 23 Nov 2010 16:12:40 -0600 Received: from greer.hardwarefreak.com (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 9F8A81C6BD0E for ; Tue, 23 Nov 2010 14:14:17 -0800 (PST) Received: from greer.hardwarefreak.com (mo-65-41-216-221.sta.embarqhsd.net [65.41.216.221]) by cuda.sgi.com with ESMTP id gPshlN7JKfZEIbAQ for ; Tue, 23 Nov 2010 14:14:17 -0800 (PST) Received: from [192.168.100.53] (gffx.hardwarefreak.com [192.168.100.53]) by greer.hardwarefreak.com (Postfix) with ESMTP id DA1E56C149 for ; Tue, 23 Nov 2010 16:14:16 -0600 (CST) Message-ID: <4CEC3CB8.8000509@hardwarefreak.com> Date: Tue, 23 Nov 2010 16:14:16 -0600 From: Stan Hoeppner MIME-Version: 1.0 Subject: Re: Xfs delaylog hanged up References: <4CEAC412.9000406@shiftmail.org> <20101122232929.GJ13830@dastard> <4CEBA2D5.2020708@shiftmail.org> <20101123204609.GW22876@dastard> In-Reply-To: <20101123204609.GW22876@dastard> List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: xfs-bounces@oss.sgi.com Errors-To: xfs-bounces@oss.sgi.com To: xfs@oss.sgi.com Dave Chinner put forth on 11/23/2010 2:46 PM: > I've been unable to reproduce the problem with your test case (been > running over night) on a 12-disk, 16TB dm RAID0 array, but I'll keep > trying to reproduce it for a while. I note that the load is > generating close to 10,000 iops on my test system, so it may very > well be triggering load related problems in your raid controller... Somewhat off topic, but how are you generating 10,000 IOPS by carving a 16TB LUN/volume from 12 x 2TB SATA disk spindles? Such drives aren't even capable of 200 seeks per second. Even if they were you'd top out at less than 2,500 IOPS (random). 16TB/12=1.33 TB per disk. No such capacity disk exists. So I assume you're using 12 x 2TB disks and slicing/dicing out 16TB. What am I missing Dave? -- Stan _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs