From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from zimbra13.linbit.com (zimbra.linbit.com [212.69.161.123]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by mail09.linbit.com (LINBIT Mail Daemon) with ESMTPS id 9F0B31045C28 for ; Wed, 20 May 2015 15:23:06 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by zimbra13.linbit.com (Postfix) with ESMTP id 91FA844CA95 for ; Wed, 20 May 2015 15:23:06 +0200 (CEST) Received: from zimbra13.linbit.com ([127.0.0.1]) by localhost (zimbra13.linbit.com [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id JrOoOEPxaJBs for ; Wed, 20 May 2015 15:23:06 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by zimbra13.linbit.com (Postfix) with ESMTP id 6BA9C44D0BB for ; Wed, 20 May 2015 15:23:06 +0200 (CEST) Received: from zimbra13.linbit.com ([127.0.0.1]) by localhost (zimbra13.linbit.com [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id rKqE08fx8Qal for ; Wed, 20 May 2015 15:23:06 +0200 (CEST) Received: from localhost (chello213047144126.1.15.vie.surfer.at [213.47.144.126]) by zimbra13.linbit.com (Postfix) with ESMTPSA id 408C244CA95 for ; Wed, 20 May 2015 15:23:06 +0200 (CEST) Date: Wed, 20 May 2015 15:23:05 +0200 From: Roland Kammerer To: drbd-dev@lists.linbit.com Message-ID: <20150520132305.GY1968@rck.sh> References: <1182776473.27.1432113988008.JavaMail.open-xchange@ronja.mits.lan> <20150520115527.GU1968@rck.sh> <1438073088.99.1432123743344.JavaMail.open-xchange@ronja.mits.lan> <20150520124010.GW1968@rck.sh> <2051305130.123.1432126495128.JavaMail.open-xchange@ronja.mits.lan> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <2051305130.123.1432126495128.JavaMail.open-xchange@ronja.mits.lan> Subject: Re: [Drbd-dev] cluster initialization with drbdmanage List-Id: "*Coordination* of development, patches, contributions -- *Questions* \(even to developers\) go to drbd-user, please." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Wed, May 20, 2015 at 02:54:54PM +0200, Dietmar Maurer wrote: > > In that case it is exactly as drbdmanage told you: > > > > CAUTION! Note that: > > * Any previous drbdmanage cluster information may be removed > > * Any remaining resources managed by a previous drbdmanage installation > > that still exist on this system will no longer be managed by drbdmanage > > > > The control volume gets overwritten, the old information is lost. > > But what if I want to add additional nodes to a cluster later? It is fine to add additional nodes later as long as they are really new and do not contain a control volume or you are willing to overwrite the existing control volume of that node. The state of your cluster is not affected by that, only the new node. I guess, what you mean by "add additional nodes" is merging two clusters, right? So adding a node node X to cluster A, that was previously in cluster B and contains resources from the old cluster B. Right? If it would not have been part of some kind of cluster B, it would not have a control volume. "add-node" is synonymous for "new-node". And "new-node" means that this node becomes part of the new cluster and its old information is not required anymore. It is the third time I ask you to switch to drbd-user and to not TO/CC me. Is it really that difficult? Regards, rck