From mboxrd@z Thu Jan 1 00:00:00 1970 From: Niccolo Rigacci Subject: Re: IBM xSeries stop responding during RAID1 reconstruction Date: Tue, 20 Jun 2006 15:08:59 +0200 Message-ID: <20060620130859.GA15394@rigacci.org> References: <20060614085354.GA18106@rigacci.org> <44902F41.8030300@rcn.com> <20060619150556.GQ11429@boogie.lpds.sztaki.hu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <20060619150556.GQ11429@boogie.lpds.sztaki.hu> Sender: linux-raid-owner@vger.kernel.org To: linux-raid@vger.kernel.org Cc: Bill Cizek , Gabor Gombas List-Id: linux-raid.ids On Mon, Jun 19, 2006 at 05:05:56PM +0200, Gabor Gombas wrote: > > IMHO a much better fix is to use the cfq I/O scheduler during the > rebuild. Yes, changing the default I/O to DEFAULT_CFQ solve the problem very well, I get over 40 Mb/s resync speed with no lock-up at all! Thank you very much, I think we can elaborate a new FAQ entry. Do you know if it is possible to switch the scheduler at runtime? -- Niccolo Rigacci Firenze - Italy Iraq, missione di pace: 38475 morti - www.iraqbodycount.net