From mboxrd@z Thu Jan 1 00:00:00 1970 From: Phillip Susi Subject: Re: [dm-devel] [PATCH v3 0/8] dm-raid (raid456) target Date: Thu, 06 Jan 2011 10:56:07 -0500 Message-ID: <4D25E617.70509@cfl.rr.com> References: <1292899065-31943-1-git-send-email-snitzer@redhat.com> <20101221141443.5aea0b12@notabene.brown> <20110105223628.GA13164@redhat.com> <20110106214645.2bd321f4@notabene.brown> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20110106214645.2bd321f4@notabene.brown> Sender: linux-raid-owner@vger.kernel.org To: device-mapper development Cc: NeilBrown , Mike Snitzer , linux-raid@vger.kernel.org, agk@redhat.com List-Id: linux-raid.ids On 1/6/2011 5:46 AM, NeilBrown wrote: > 3: <#raid_devs> .. Let me get this straight. You specify a separate device to hold the metadata and write intent bitmap for each data device? So for a 3 disk raid 5, lvm will need to create two logical volumes on each of the 3 physical volumes, one of which will only be a single physical extent, and will hold the raid metadata and write intent bitmap? Why not just store the metadata on the main device like mdadm does today?