From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id p0VJF2bI121859 for ; Mon, 31 Jan 2011 13:15:02 -0600 Date: Mon, 31 Jan 2011 14:17:20 -0500 From: Christoph Hellwig Subject: Re: xfs: very slow after mount, very slow at umount Message-ID: <20110131191720.GA2327@infradead.org> References: <4D419765.4070805@teksavvy.com> <4D41CA16.8070001@hardwarefreak.com> <4D42056E.2050505@hardwarefreak.com> <20110128135629.GX21311@dastard> <20110129054021.GB21311@dastard> <20110129073554.GC21311@dastard> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20110129073554.GC21311@dastard> 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: Dave Chinner Cc: david@lang.hm, Linux Kernel , xfs@oss.sgi.com, Christoph Hellwig , Justin Piszcz , Alex Elder , Mark Lord , Stan Hoeppner On Sat, Jan 29, 2011 at 06:35:54PM +1100, Dave Chinner wrote: > Just because we can't do it right now doesn't mean it is not > possible. Array/raid controller vendors need to implement the SCSI > block limit VPD page, and if they do then stripe unit/stripe width > may be exposed for the device in sysfs. However, I haven't seen any > devices except for md and dm that actually export values that > reflect sunit/swidth in the files: I have access to a few big vendor arrays that export it, but I think they are still running beta firmware versions. _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs