From mboxrd@z Thu Jan 1 00:00:00 1970 From: Keld =?iso-8859-1?Q?J=F8rn?= Simonsen Subject: Re: raid10 vs raid5 - strange performance Date: Wed, 26 Mar 2008 00:36:49 +0100 Message-ID: <20080325233649.GA632@rap.rap.dk> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: Sender: linux-raid-owner@vger.kernel.org To: Christian Pernegger Cc: Linux RAID List-Id: linux-raid.ids On Tue, Mar 25, 2008 at 10:33:06PM +0100, Christian Pernegger wrote: > I did a few tests of raid10 on an old 3ware 7506-8 today (using 6 > drives), both with the built-in raid 10 and md's n2 and chunk sizes > from 64KB to 1024KB. > - caches dropped before each test > - averages of three runs > - arrays in synced state > - dd tests: 6GB (3MB bs) What are the specifics for the raid10? Which layout? How many copies? Best regards keld