From mboxrd@z Thu Jan 1 00:00:00 1970 From: Richard Scobie Subject: Re: Performance Characteristics of All Linux RAIDs (mdadm/bonnie++) Date: Thu, 29 May 2008 08:03:34 +1200 Message-ID: <483DBA96.4010105@sauce.co.nz> References: <483D7CE8.4000600@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <483D7CE8.4000600@redhat.com> Sender: linux-raid-owner@vger.kernel.org To: Chris Snook Cc: Justin Piszcz , linux-raid@vger.kernel.org List-Id: linux-raid.ids Chris Snook wrote: > course, you'd want to use a single SATA controller with a known good NCQ > implementation, and hard drives known to not do stupid things like > disable readahead when NCQ is enabled. Do you have a list of drives that do disable readahead on NCQ? Regards, Richard