From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx1.redhat.com (mx1.redhat.com [172.16.48.31]) by int-mx1.corp.redhat.com (8.12.11.20060308/8.12.11) with ESMTP id k77LxIJ6012521 for ; Mon, 7 Aug 2006 17:59:18 -0400 Received: from omner.org (www.omner.org [64.79.194.221]) by mx1.redhat.com (8.12.11.20060308/8.12.11) with ESMTP id k77LxGoF004257 for ; Mon, 7 Aug 2006 17:59:16 -0400 Received: from omner.org (vps.omner.org [127.0.0.1]) by omner.org (Postfix) with ESMTP id 40A23163C031 for ; Mon, 7 Aug 2006 21:59:15 +0000 (UTC) Received: from [192.168.80.173] (unknown [208.53.40.164]) by omner.org (Postfix) with ESMTP id D52E6163C02F for ; Mon, 7 Aug 2006 21:59:14 +0000 (UTC) From: Joshua Aune Date: Mon, 07 Aug 2006 15:59:32 -0600 Message-Id: <1154987972.16651.28.camel@localhost.localdomain> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [linux-lvm] Running LVM on shared lun's Reply-To: LVM general discussion and development List-Id: LVM general discussion and development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , List-Id: Content-Type: text/plain; charset="us-ascii" To: LVM general discussion and development I have two systems that are connected to a SAN. The SAN is exporting the same 4 luns to each system (/dev/sd[b,c,d,e]). Under normal operation system1 will combine sdb with sdc into a vg and system2 will combine sdd with sde into a vg with both vgs consisting of one large lv and one small lv. After the system is configured there will be no modifications made to the LVM configuration. LVM is configured on one node and then copied over to the second node. The million dollar question is, can system1 and system2 simultaneously have both of the VGs active without hosing any data? I am not trying to have the same filesystem mounted simultaneously, just have the LVs available simultaneously for failover needs I know that this sort of config can be done with the GFS pool volume manger but I have been told that many other VMs don't support this behavior.... Thanks, Josh