From mboxrd@z Thu Jan 1 00:00:00 1970 From: Keld =?iso-8859-1?Q?J=F8rn?= Simonsen Subject: Re: Raid selection questions (10 vs 6, n2 vs f2) on an 8 drive array Date: Sat, 19 Feb 2011 01:54:39 +0100 Message-ID: <20110219005439.GA3251@www2.open-std.org> References: <4D5F0458.3060403@hardwarefreak.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <4D5F0458.3060403@hardwarefreak.com> Sender: linux-raid-owner@vger.kernel.org To: Stan Hoeppner Cc: Larry Schwerzler , linux-raid List-Id: linux-raid.ids On Fri, Feb 18, 2011 at 05:44:24PM -0600, Stan Hoeppner wrote: > Larry Schwerzler put forth on 2/18/2011 2:55 PM: > > > 1. In my research of raid10 I very seldom hear of drive configurations > > with more drives then 4, are there special considerations with having > > an 8 drive raid10 array? I understand that I'll be loosing 2TB of > > space from my current setup, but i'm not too worried about that. > > This is because Linux mdraid is most popular with the hobby crowd, not > business, and most folks in this segment aren't running more than 4 > drives in a RAID 10. For business solutions using embedded Linux and > mdraid, mdraid is typically hidden from the user who isn't going to be > writing posts on the net about mdraid. He calls his vendor for support. > In a nutshell, that's why you see little or no posts about mdraid 10 > arrays larger than 4 drives. well on https://raid.wiki.kernel.org/index.php/Performance there are several performance reports with 6 or 10 spindles, so there... For an 8 drive Linux MD raid10 maybe you should consider a motherboard with 8 sata ports. Best regards keld