From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andreas Dilger Subject: Re: which file system? Date: Mon, 30 Jan 2006 22:11:48 -0700 Message-ID: <20060131051148.GS11642@schatzie.adilger.int> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: linux-fsdevel@vger.kernel.org Return-path: Received: from H190.C26.B96.tor.eicat.ca ([66.96.26.190]:64389 "EHLO moraine.clusterfs.com") by vger.kernel.org with ESMTP id S964900AbWAaFLw (ORCPT ); Tue, 31 Jan 2006 00:11:52 -0500 To: Sebastian Kuzminsky Content-Disposition: inline In-Reply-To: Sender: linux-fsdevel-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org On Jan 30, 2006 13:34 -0700, Sebastian Kuzminsky wrote: > I'm building a disk server for a small company. I'm using the standard > "RAID-array-as-PV" setup, and planning to grow the filesystem as needs > demand. I'd like to use a filesystem that supports online grow and > online shrink. > > XFS, JFS, and Reiser3 all support unlimited online grow but no shrink > at all. > > Looks like Ext3 supports online grow, but only up to +16 GB, which > makes it useless on modern disks, much less arrays of modern disks.... Actually, ext3 by default with newer e2fsprogs will allow growth up to 1024x original filesystem size. The ext2online tool is included with RHEL4/FC3 e2fsprogs. The +16GB limit is if you are resizing a filesystem which has not been "prepared" for online resizing. Cheers, Andreas -- Andreas Dilger Principal Software Engineer Cluster File Systems, Inc.