From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: with ECARTIS (v1.0.0; list xfs); Mon, 26 Mar 2007 15:09:19 -0700 (PDT) Received: from postoffice.aconex.com (mail.app.aconex.com [203.89.192.138]) by oss.sgi.com (8.12.10/8.12.10/SuSE Linux 0.7) with ESMTP id l2QM9E6p003285 for ; Mon, 26 Mar 2007 15:09:15 -0700 Subject: Re: changing xfs file system tunnings(sunit,swidth) after mkfs.xfs From: Nathan Scott Reply-To: nscott@aconex.com In-Reply-To: <5d96567b0703261325m8f17b2eg55e04264fee4832a@mail.gmail.com> References: <5d96567b0703261325m8f17b2eg55e04264fee4832a@mail.gmail.com> Content-Type: text/plain; charset=UTF-8 Date: Tue, 27 Mar 2007 08:10:30 +1000 Message-Id: <1174947030.5051.586.camel@edge> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: xfs-bounce@oss.sgi.com Errors-to: xfs-bounce@oss.sgi.com List-Id: xfs To: "Raz Ben-Jehuda(caro)" Cc: xfs@oss.sgi.com On Mon, 2007-03-26 at 22:25 +0200, Raz Ben-Jehuda(caro) wrote: > I want to change the sunit,swidth of a file system which > was already created with a different tunnings, or at least > mount it with a different values. > Is it possible ? >>From the XFS section in mount(8) ... sunit=value and swidth=value Used to specify the stripe unit and width for a RAID device or a stripe volume. value must be specified in 512-byte block units. If this option is not specified and the filesystem was made on a stripe volume or the stripe width or unit were specified for the RAID device at mkfs time, then the mount system call will restore the value from the superblock. For filesystems that are made directly on RAID devices, these options can be used to override the information in the superblock if the underlying disk layout changes after the filesystem has been created. The swidth option is required if the sunit option has been speci‐ fied, and must be a multiple of the sunit value. cheers. -- Nathan