From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id oBO0xJjI029432 for ; Thu, 23 Dec 2010 18:59:20 -0600 Received: from greer.hardwarefreak.com (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 130D1147EEEF for ; Thu, 23 Dec 2010 17:01:18 -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 Mcq9riURJ3wKeiBu for ; Thu, 23 Dec 2010 17:01:18 -0800 (PST) Received: from [192.168.100.53] (gffx.hardwarefreak.com [192.168.100.53]) by greer.hardwarefreak.com (Postfix) with ESMTP id 2395B6C14F for ; Thu, 23 Dec 2010 19:01:18 -0600 (CST) Message-ID: <4D13F0DE.50306@hardwarefreak.com> Date: Thu, 23 Dec 2010 19:01:18 -0600 From: Stan Hoeppner MIME-Version: 1.0 Subject: Re: Anyone using XFS in production on > 20TiB volumes? References: <20101222175611.1c7d5190@harpe.intellique.com> <4D124B71.9030401@sandeen.net> <20101223012655.2681c596@galadriel.home> <20101223005630.GJ4907@dastard> <20101223195544.53d45f0b@galadriel.home> In-Reply-To: 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 Justin Piszcz put forth on 12/23/2010 1:29 PM: > Please check the updated page: > http://home.comcast.net/~jpiszcz/20101223/final.html > > Using a partition shows a slight degredation in the re-write speed but > an increase in performance for sequential output and input with the mode > set to perform. Looks like this is what I will be using as it is the > fastest > speeds overall except for the rewrite. If your primary workloads for this array are mostly single user/thread streaming writes/reads then this may be fine. If they are multi-user or multi-threaded random re-write server loads, re-write is the most important metric and you should optimize for that scenario alone, as its performance is most dramatically impacted by parity RAID schemes such as RAID 6. -- Stan _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs