From mboxrd@z Thu Jan 1 00:00:00 1970 From: Justin Piszcz Subject: Re: 3ware 9650 tips Date: Fri, 13 Jul 2007 14:35:18 -0400 (EDT) Message-ID: References: Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Return-path: In-Reply-To: Sender: linux-raid-owner@vger.kernel.org To: Joshua Baker-LePain Cc: linux-ide-arrays@lists.math.uh.edu, linux-raid@vger.kernel.org List-Id: linux-raid.ids On Fri, 13 Jul 2007, Joshua Baker-LePain wrote: > My new system has a 3ware 9650SE-24M8 controller hooked to 24 500GB WD > drives. The controller is set up as a RAID6 w/ a hot spare. OS is CentOS 5 > x86_64. It's all running on a couple of Xeon 5130s on a Supermicro X7DBE > motherboard w/ 4GB of RAM. > > Trying to stick with a supported config as much as possible, I need to run > ext3. As per usual, though, initial ext3 numbers are less than impressive. > Using bonnie++ to get a baseline, I get (after doing 'blockdev --setra 65536' > on the device): > Write: 136MB/s > Read: 384MB/s > > Proving it's not the hardware, with XFS the numbers look like: > Write: 333MB/s > Read: 465MB/s > > How many folks are using these? Any tuning tips? > > Thanks. > > -- > Joshua Baker-LePain > Department of Biomedical Engineering > Duke University > Let's try that again with the right address :) You are using HW RAID then? Those numbers seem pretty awful for that setup, including linux-raid@ even it though it appears you're running HW raid, this is rather peculiar. To give you an example I get 464MB/s write and 627MB/s with a 10 disk raptor software raid5. Justin.