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 p3QLmqCl183962 for ; Tue, 26 Apr 2011 16:48:52 -0500 Received: from mail.1-click.hu (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 7E7BB153BCAB for ; Tue, 26 Apr 2011 14:52:23 -0700 (PDT) Received: from mail.1-click.hu (ns2.netcenter.hu [195.228.155.139]) by cuda.sgi.com with ESMTP id goaG3PvXmekIuqCn for ; Tue, 26 Apr 2011 14:52:23 -0700 (PDT) Message-ID: <2FDAD38566FF4F8B9C5ACF3F900287D6@myXP> From: "Janos Haar" References: <4DA36676.1070206@hardwarefreak.com> Subject: Re: 2 question about XFS fragmentation and _fsr: SPLITTED Q1:sparese files Date: Tue, 26 Apr 2011 23:50:43 +0200 MIME-Version: 1.0 List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: xfs-bounces@oss.sgi.com Errors-To: xfs-bounces@oss.sgi.com To: Stan Hoeppner Cc: linux-xfs@oss.sgi.com Note: I have splitted my previous letter for easyer discusion... This have only Question-1 the storage with only sparse files. ----- Original Message ----- From: "Stan Hoeppner" To: "Janos Haar" Cc: Sent: Monday, April 11, 2011 10:37 PM Subject: Re: 2 question about XFS fragmentation and _fsr > Janos Haar put forth on 4/11/2011 12:39 PM: > >> In the result, actually we have >6TB images on the 3TB disk, wich is >> 97.9% fragmented. > > How much free space does the filesystem have? How big is each image > file? For xfs_fsr to work properly it must have sufficient free space > in the filesystem. Actually less than 1%. I know, this is too less for xfs_fsr, but i am only thinking actually to try because i am unsure this is useful for me. > >> Basically the sparse RAW disk images should be more faster accessible >> than the original drive, because this is 4disk raid, instead of one, AND >> the head don't need to travel through the empty space of the drive... > > It sounds like you may have some other issues besides filesystem > fragmentation. > >> The XFS_FSR can be good for me or not? > > If you have plenty of free space. > > -- > Stan Thanks, Janos _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs