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 q1I1woxs126085 for ; Fri, 17 Feb 2012 19:58:50 -0600 Received: from greer.hardwarefreak.com (mo-65-41-216-221.sta.embarqhsd.net [65.41.216.221]) by cuda.sgi.com with ESMTP id aGwgEjabOxu6GFOP for ; Fri, 17 Feb 2012 17:58:49 -0800 (PST) Message-ID: <4F3F05D4.1020705@hardwarefreak.com> Date: Fri, 17 Feb 2012 19:58:44 -0600 From: Stan Hoeppner MIME-Version: 1.0 Subject: Re: XFS memory recomendation? References: <2BF070A7A2375D46BA1B6087F8D5DCB68BEA721CA3@seldmbx01.corpusers.net> <20120217024941.GH14132@dastard> In-Reply-To: <20120217024941.GH14132@dastard> Reply-To: stan@hardwarefreak.com 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: Dave Chinner Cc: "xfs@oss.sgi.com" , "Assarsson, Emil" On 2/16/2012 8:49 PM, Dave Chinner wrote: > On Thu, Feb 16, 2012 at 12:50:57PM +0100, Assarsson, Emil wrote: >> Hi, >> >> Are there any recommendations about how much memory I need based >> on the size of the file system and/or amount of files? For >> example: how much memory would be optimal for a 20TB file system >> with 3000000 files? > > /me shrugs > >> I guess it depends on the usage pattern? > > Totally. Allow me to drag the OP's question under a different light... I have a 20TB XFS filesystem with 3000000 files. What is the minimum amount of system RAM I will need to run an xfs_check or xfs_repair or xfs_[tool] on this filesystem, assuming Linux has been put into a low overhead state, and said tool[s] has access to the bulk of the system memory? Is there a formula available so any XFS user can calculate this xfs_[tools] RAM requirement, given FS size X and file count Y? -- Stan _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs