From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: with ECARTIS (v1.0.0; list xfs); Tue, 24 Jun 2008 07:24:24 -0700 (PDT) Received: from cuda.sgi.com ([192.48.176.15]) by oss.sgi.com (8.12.11.20060308/8.12.11/SuSE Linux 0.7) with ESMTP id m5OEOJq3016400 for ; Tue, 24 Jun 2008 07:24:20 -0700 Received: from mail.lichtvoll.de (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 02CA1181153C for ; Tue, 24 Jun 2008 07:25:19 -0700 (PDT) Received: from mail.lichtvoll.de (mondschein.lichtvoll.de [194.150.191.11]) by cuda.sgi.com with ESMTP id nDAP7uDmrNyhJlcM for ; Tue, 24 Jun 2008 07:25:19 -0700 (PDT) From: Martin Steigerwald Subject: Re: md raid1 passes barriers, but xfs doesn't use them? Date: Tue, 24 Jun 2008 16:25:17 +0200 References: <48605A8E.9070903@sandeen.net> <200806241131.12112.Martin@lichtvoll.de> <4860F7E4.2080106@sandeen.net> (sfid-20080624_161808_555876_E63DCB9F) In-Reply-To: <4860F7E4.2080106@sandeen.net> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200806241625.17511.Martin@lichtvoll.de> Sender: xfs-bounce@oss.sgi.com Errors-to: xfs-bounce@oss.sgi.com List-Id: xfs To: linux-xfs@oss.sgi.com Cc: Eric Sandeen Am Dienstag 24 Juni 2008 schrieb Eric Sandeen: > Martin Steigerwald wrote: > > Hi Eric! [...] > > Did you test with ext3 too? > > This is xfs-specific; ext3 does not look for the queue ordered flag so > won't have this problem on md raid1. > > > [1] http://bugzilla.kernel.org/show_bug.cgi?id=9554 > > but that's for device-mapper, which has never supported barriers .... > I'm talking about md raid1 here (not dm). Thanks for the info. My misunderstanding - I always thought and I thought I even read it somewhere - that md was a device mapper application. Ciao, -- Martin 'Helios' Steigerwald - http://www.Lichtvoll.de GPG: 03B0 0D6C 0040 0710 4AFA B82F 991B EAAC A599 84C7