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 p4VFGXHL054140 for ; Tue, 31 May 2011 10:16:33 -0500 Received: from firestarter.dermichi.com (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 7E922516844 for ; Tue, 31 May 2011 08:16:31 -0700 (PDT) Received: from firestarter.dermichi.com (firestarter.dermichi.com [78.41.115.230]) by cuda.sgi.com with ESMTP id dNKfoEQzLGAI4wti for ; Tue, 31 May 2011 08:16:31 -0700 (PDT) Received: from dermichi-2-pt.tunnel.tserv23.zrh1.ipv6.he.net ([2001:470:25:4f4::2]) by firestarter.dermichi.com with esmtpsa (TLSv1:CAMELLIA256-SHA:256) (Exim 4.76) (envelope-from ) id 1QRQgJ-0000EY-5g for xfs@oss.sgi.com; Tue, 31 May 2011 17:16:31 +0200 Message-ID: <4DE5064D.1010203@dermichi.com> Date: Tue, 31 May 2011 17:16:29 +0200 From: Michael Weissenbacher MIME-Version: 1.0 Subject: Re: xfssyncd and disk spin down References: <20101223165532.GA23813@peter.simplex.ro> <20101227021904.GA24828@dastard> <20101227061629.GA2275@pandora.simplex.ro> <20101227140750.GB24828@dastard> <20101227171939.GA7759@pandora.simplex.ro> <20101231001323.GD15179@dastard> <20110120100143.GA2007@peter.simplex.ro> <20110120234310.GV16267@dastard> <20110210204254.GA10451@peter.simplex.ro> <20110210221851.GG2559@dastard> 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 Sender: xfs-bounces@oss.sgi.com Errors-To: xfs-bounces@oss.sgi.com To: xfs@oss.sgi.com Brian wrote: > > Can anyone please comment if this bug was ever fixed? > > I have searched and see no further talk about this. > > echo 720000 > /proc/sys/fs/xfs/xfssyncd_centisecs allows a drive to sleep more > often, but still is impacted by this. > > Thanks! > AFAICT nothing has changed in this regard. I sill see the same behavior with kernel 2.6.39. Thanks to this thread i found out about the problems related to accumulating head unloads which i was able to mitigate by setting xfssyncd_centisecs to a higher value. cheers, Michael _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs