From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id q2N5AQVp105262 for ; Fri, 23 Mar 2012 00:10:27 -0500 Received: from greer.hardwarefreak.com (mo-65-41-216-221.sta.embarqhsd.net [65.41.216.221]) by cuda.sgi.com with ESMTP id ICqBFyUDVCUALBBd for ; Thu, 22 Mar 2012 22:10:25 -0700 (PDT) Message-ID: <4F6C05C1.4020204@hardwarefreak.com> Date: Fri, 23 Mar 2012 00:10:25 -0500 From: Stan Hoeppner MIME-Version: 1.0 Subject: Re: raid10n2/xfs setup guidance on write-cache/barrier References: <4F61803A.60009@hardwarefreak.com> <20321.63389.586851.689070@tree.ty.sabi.co.UK> <4F64115D.50208@hardwarefreak.com> <20120317223454.GQ5091@dastard> <20325.17387.216150.45013@tree.ty.sabi.co.UK> <20325.50714.237894.328039@tree.ty.sabi.co.UK> <4F6624A3.5010206@hardwarefreak.com> <20331.39194.377610.888636@tree.ty.sabi.co.UK> In-Reply-To: <20331.39194.377610.888636@tree.ty.sabi.co.UK> Reply-To: stan@hardwarefreak.com 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: Peter Grandi Cc: Linux RAID , Linux fs XFS On 3/22/2012 4:26 PM, Peter Grandi wrote: [snipped 2-3 pages of redundant nonsense, linked docs, and filesystem concepts everyone is already familiar with] > Overselling 'delaylog' with cheeky propaganda glossing over the > heavy tradeoffs involved is understandable, but quite wrong. And now we come full circle to what started this mess of a discussion: Peter's dislike of Dave's presentation of delaylog, and XFS in general, at linux.conf.au. Peter, if *you* had been giving Dave's presentation at linux.conf.au, how would *you* have presented delayed logging differently? How much time would you have spent warning of the dangers of potential data loss upon a crash and how would you have presented it? Note I'm not asking you to re-critique Dave's presentation. I'm asking you to write your own short presentation of the delayed logging feature, so we can all see it done the right way, without "cheeky propaganda" and without "glossing over the heavy tradeoffs". We're all on the edge of our seats, eagerly awaiting your expert XFS presentation Peter. -- Stan _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs