From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 2053D7F37 for ; Wed, 15 May 2013 02:33:08 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id EC1AC304066 for ; Wed, 15 May 2013 00:33:07 -0700 (PDT) Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id NCADVekEmigjAkiO for ; Wed, 15 May 2013 00:33:06 -0700 (PDT) Date: Wed, 15 May 2013 17:33:04 +1000 From: Dave Chinner Subject: Re: Why xfs can not mount use barrier option? Message-ID: <20130515073304.GR29466@dastard> References: MIME-Version: 1.0 Content-Disposition: inline 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 Errors-To: xfs-bounces@oss.sgi.com Sender: xfs-bounces@oss.sgi.com To: ch huang Cc: xfs@oss.sgi.com On Wed, May 15, 2013 at 03:08:56PM +0800, ch huang wrote: > i use lvm on raid 1,/dev/CHVG01/conxfs is a logical volume,if i mount with > barrier,the /proc/mounts still show nobarrier option ,why? http://xfs.org/index.php/XFS_FAQ#Q:_What_information_should_I_include_when_reporting_a_problem.3F > # mount -t xfs -o barrier,attr2,noikeep,inode64 /dev/CHVG01/conxfs /opt/contest/ > # cat /proc/mounts > /dev/CHVG01/conxfs /opt/contest xfs rw,attr2,nobarrier,inode64,noquota 0 0 Check dmesg - most likely something in your storage stack doesn't support barriers so they got turned off.... Cheers, Dave. -- Dave Chinner david@fromorbit.com _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs