From mboxrd@z Thu Jan 1 00:00:00 1970 From: Neil Brown Subject: Re: md RAID 10 on Linux 2.6.20? Date: Fri, 23 Nov 2007 14:27:37 +1100 Message-ID: <18246.18601.167303.785264@notabene.brown> References: <8C9FB9564550DC0-464-E73@FWM-D05.sysops.aol.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: message from thomas62186218@aol.com on Thursday November 22 Sender: linux-raid-owner@vger.kernel.org To: thomas62186218@aol.com Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids On Thursday November 22, thomas62186218@aol.com wrote: > Hi all, > > I am running a home-grown Linux 2.6.20.11 SMP 64-bit build, and I am > wondering if there is indeed a RAID 10 "personality" defined in md that > can be implemented using mdadm. If so, is it available in 2.6.20.11, or > is it in a later kernel version? In the past, to create RAID 10, I > created RAID 1's and a RAID 0, so an 8 drive RAID 10 would actually > consist of 5 md devices (four RAID 1's and one RAID 0). But if I could > just use RAID 10 natively, and simply create one RAID 10, that would of > course be better both in terms of management and probably performance I > would guess. Is this possible? Why don't you try it and see, or check the documentation? But yes, there is native RAID10 in 2.6.20. NeilBrown