From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx3.redhat.com (mx3.redhat.com [172.16.48.32]) by int-mx1.corp.redhat.com (8.13.1/8.13.1) with ESMTP id m0PFYJXL022968 for ; Fri, 25 Jan 2008 10:34:20 -0500 Received: from mail2.syneticon.net (mail.syneticon.net [213.239.212.131]) by mx3.redhat.com (8.13.1/8.13.1) with ESMTP id m0PFXcD5027556 for ; Fri, 25 Jan 2008 10:33:39 -0500 Received: from postfix1.syneticon.net (postfix1.syneticon.net [192.168.112.6]) by mail2.syneticon.net (Postfix) with ESMTP id 8BA8649B35 for ; Fri, 25 Jan 2008 16:33:34 +0100 (CET) Received: from localhost (filter1.syneticon.net [192.168.113.3]) by postfix1.syneticon.net (Postfix) with ESMTP id 271FF9486 for ; Fri, 25 Jan 2008 16:33:32 +0100 (CET) Received: from postfix1.syneticon.net ([192.168.113.4]) by localhost (mx03.syneticon.net [192.168.113.3]) (amavisd-new, port 10025) with ESMTP id hXk-AlpTR4Gy for ; Fri, 25 Jan 2008 16:33:30 +0100 (CET) Received: from [192.168.10.145] (koln-4d0b06c4.pool.mediaWays.net [77.11.6.196]) by postfix1.syneticon.net (Postfix) with ESMTP for ; Fri, 25 Jan 2008 16:33:30 +0100 (CET) Message-ID: <479A0148.40500@wpkg.org> Date: Fri, 25 Jan 2008 16:33:28 +0100 From: Tomasz Chmielewski MIME-Version: 1.0 Subject: Re: [linux-lvm] is LVM cluster-aware? References: <4798C8D9.6020506@wpkg.org> <4798CB0A.8090501@redhat.com> In-Reply-To: <4798CB0A.8090501@redhat.com> Content-Transfer-Encoding: 7bit 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"; format="flowed" To: LVM general discussion and development Bryn M. Reeves schrieb: >> I don't want to add/remove/rename/resize/etc. any volumes - just access >> them on separate machines. > > As long as you never try to update the LVM metadata from two nodes at > the same time (e.g. add/remove/rename/resize etc. running on two nodes > simultaneously) then this is fine, but there is no automatic prevention > of this situation. Thanks for the tips on clvmd and pointing to linux-cluster list archive - I'm about to dig into it. Are you 100% sure LVM metadata is not updated when I don't add/remove/rename/resize/etc. any volumes? I.e., won't lvs or pvs commands write or update some timestamps, for example? -- Tomasz Chmielewski http://wpkg.org