From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stan Hoeppner Subject: Re: Help please: 2-5 tps on write with 98% iowait Date: Thu, 26 Jan 2012 20:18:16 -0600 Message-ID: <4F220968.4050902@hardwarefreak.com> References: <4F21B5E1.7070207@hardwarefreak.com> <20120126155742.736c7886@pog.tecnopolis.ca> Reply-To: stan@hardwarefreak.com Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20120126155742.736c7886@pog.tecnopolis.ca> Sender: linux-raid-owner@vger.kernel.org To: Trevor Cordes Cc: linux-raid@vger.kernel.org, Seth Jennings List-Id: linux-raid.ids On 1/26/2012 3:57 PM, Trevor Cordes wrote: > On 2012-01-26 Stan Hoeppner wrote: >> On 1/25/2012 12:15 PM, Seth Jennings wrote: >>> The write performance on my raid5 took a nose dive yesterday >> >> Simply identify what changed between the 24th and 25th, if indeed this >> problem started on the 25th. > > Check my very last email to the mailing list, re: WD Green drives. If > you have WD Greens, esp EADS ones, that's your problem probably. On 1/25/2012 12:15 PM, Seth Jennings wrote: > /dev/sda: 250GB single part > /dev/sdb: 250GB single part > /dev/sdc: 500GB, 2x250GB parts > /dev/sdd: 320GB, 250GB and 70GB parts Trevor, which of the OP's 4 drives mentioned in his initial post do you believe to be a WD Green? -- Stan