From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 4BB7229DF8 for ; Tue, 11 Jun 2013 16:03:21 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 29C258F8049 for ; Tue, 11 Jun 2013 14:03:18 -0700 (PDT) Received: from ipmail05.adl6.internode.on.net (ipmail05.adl6.internode.on.net [150.101.137.143]) by cuda.sgi.com with ESMTP id 9roBQXQce0nEgmIQ for ; Tue, 11 Jun 2013 14:03:16 -0700 (PDT) Date: Wed, 12 Jun 2013 07:03:12 +1000 From: Dave Chinner Subject: Re: Questions about XFS Message-ID: <20130611210312.GN29338@dastard> References: <51B72D3D.5010206@redhat.com> <51B75C39.3030306@redhat.com> <51B75EF7.40801@redhat.com> 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: Steve Bergman Cc: Stefan Ring , Ric Wheeler , Linux fs XFS On Tue, Jun 11, 2013 at 02:30:36PM -0500, Steve Bergman wrote: > Thanks. But I'm specifically *not* talking about database apps, I'm > talking about non-database applications written in languages that > don't even have a concept of fsync. I get it. You want a pony, and you don't want to pay anything for it. Any language is fundamentally broken if it has no concept and/or method for ensuring data integrity for data that is written through it. If you have such a language and you need data integrity then your only filesystem option for guaranteeing no data loss is synchronous writes and metadata updates. XFS allows you to minimise the impact of such legacy languages and applications to just the data sets those applications use through the use of 'chattr -S' and the /proc/sys/fs/xfs/xfs_inherit_sync sysctl.... Cheers, Dave. -- Dave Chinner david@fromorbit.com _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs