From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mihamina Rakotomandimby Subject: poor man's or newbie's cloud? Date: Tue, 17 Jul 2012 08:42:26 +0300 Message-ID: <5004FB42.9060002@rktmb.org> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit To: kvm@vger.kernel.org Return-path: Received: from relay4-d.mail.gandi.net ([217.70.183.196]:52807 "EHLO relay4-d.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754588Ab2GQFmd (ORCPT ); Tue, 17 Jul 2012 01:42:33 -0400 Received: from mfilter4-d.gandi.net (mfilter4-d.gandi.net [217.70.178.134]) by relay4-d.mail.gandi.net (Postfix) with ESMTP id 08EE2172071 for ; Tue, 17 Jul 2012 07:42:31 +0200 (CEST) Received: from relay4-d.mail.gandi.net ([217.70.183.196]) by mfilter4-d.gandi.net (mfilter4-d.gandi.net [10.0.15.180]) (amavisd-new, port 10024) with ESMTP id TO2grgBJS2QA for ; Tue, 17 Jul 2012 07:42:29 +0200 (CEST) Received: from [192.168.0.111] (ip-41-190-237-66.orange.mg [41.190.237.66]) (Authenticated sender: out@rktmb.org) by relay4-d.mail.gandi.net (Postfix) with ESMTPSA id 23BA9172070 for ; Tue, 17 Jul 2012 07:42:28 +0200 (CEST) Sender: kvm-owner@vger.kernel.org List-ID: Hi all, I have 2 physical machines, same installation, maybe some minor hardware differences, but basically the same CPU, HDD. I would like to experiment "the cloud" home. I create a KVM VM (usually with virt-install) on the first machine. I would like to - duplicate & synchronize the 1rst VM to a 2nd VM on the other host: how to? - volontarily shutdown the first VM to simulate a down and have the 2nd VM to be used: how to? To my understanding, I would need at least a specific network system (a L2 switch?) and another machine to detect the down state of the first VM. Am I wrong? Thank you for you indications. -- RMA.