From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id qB9NmpQj146152 for ; Sun, 9 Dec 2012 17:48:51 -0600 Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id 2Dqe4yBAwWxfxY1X for ; Sun, 09 Dec 2012 15:51:17 -0800 (PST) Date: Mon, 10 Dec 2012 10:51:05 +1100 From: Dave Chinner Subject: Re: [PATCH] xfstests: Ensure cmdline geometry puts mkfs.xfs into multidisk mode Message-ID: <20121209235105.GD15784@dastard> References: <50ABB115.9070905@sandeen.net> <20121121095636.GC23339@infradead.org> <50C115E8.9090106@sandeen.net> <20121208120007.GB4430@infradead.org> <50C36A83.1040406@sandeen.net> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <50C36A83.1040406@sandeen.net> 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 Sender: xfs-bounces@oss.sgi.com Errors-To: xfs-bounces@oss.sgi.com To: Eric Sandeen Cc: Christoph Hellwig , Ben England , xfs-oss On Sat, Dec 08, 2012 at 10:27:47AM -0600, Eric Sandeen wrote: > On 12/8/12 6:00 AM, Christoph Hellwig wrote: > > On Thu, Dec 06, 2012 at 04:02:16PM -0600, Eric Sandeen wrote: > >> Ensure that when mkfs.xfs is invoked with commandline geometry, it > >> triggers multidisk mode and creates more AGs. > >> > >> Signed-off-by: Eric Sandeen > > > > Looks good, > > > > Reviewed-by: Christoph Hellwig > > Thanks > > >> Maybe this should also test device-specified geometry, but not sure > >> how to do that easily within xfstests, any ideas? > > > > That would involved scsi_debug so that we could set them up. We had > > several ideas how to use scsi debug for these sort of tests but never > > really bothered to do it. If you have some spare cycles I'd love to see > > this sort of tests. > > scsi_debug won't report geometry on its own today; we'd need to assemble > something out of scsi_debug luns I'm afraid, so it gets even more involved. > > We do have a little bit of scsi_debug framework in xfstests today, though, > so if scsi_debug grew the capability it'd be easy to add. Does it really need scsi for this? To mkfs.xfs, all devices look the same, so if you want to make random geometries, wouldn't playing games with llopback devices and DM be sufficient? Cheers, Dave. -- Dave Chinner david@fromorbit.com _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs