From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matt Tehonica Subject: Typical RAID5 transfer speeds Date: Fri, 18 Dec 2009 19:37:20 -0500 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed; delsp=yes Content-Transfer-Encoding: 7BIT Return-path: Sender: linux-raid-owner@vger.kernel.org To: linux-raid@vger.kernel.org List-Id: linux-raid.ids I have a 4 disk RAID5 using a 2048K chunk size and using XFS filesystem. Typical file size is about 2GB-5GB. I usually get around 50MB/sec transfer speed when writting files to the array. Is this typcial or is it below normal? A friend has a 20 disk RAID6 using the same filesystem and chunk size and gets around 150MB/sec. Any input on this?? Thanks, Matt