Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 4 Apr 2002 17:02:37 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 4 Apr 2002 17:02:27 -0500 Received: from adsl-63-194-239-202.dsl.lsan03.pacbell.net ([63.194.239.202]:20211 "EHLO mmp-linux.matchmail.com") by vger.kernel.org with ESMTP id ; Thu, 4 Apr 2002 17:02:13 -0500 Date: Thu, 4 Apr 2002 14:04:14 -0800 From: Mike Fedyk To: Mark Cooke Cc: linux-kernel@vger.kernel.org Subject: Re: Raid5 resync slow with one linear array Message-ID: <20020404220414.GB29089@matchmail.com> Mail-Followup-To: Mark Cooke , linux-kernel@vger.kernel.org In-Reply-To: <20020403005244.GE952@matchmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.3.28i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Apr 04, 2002 at 10:56:02PM +0100, Mark Cooke wrote: > > Hmm, > > Well you have me stumped then, Mike. I've only been playing with the > raid stuff for a little while myself, and haven't had this trouble. > > Hope someone else on the list can help! I think it is the linear array that is part of the raid5 array. RAID5 writing to the linear array (because one of the members of the RAID5 is another linear pair of drives) probably is accounted as normal userspace IO, and that causes the code to choose a slower transfer rate to sync. Can someone confirm? - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/