From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nils Cant Subject: Re: Is it possible to live migrate guest OS'es between different versions of kvm/qemu-kvm? Date: Tue, 07 Sep 2010 09:23:19 +0200 Message-ID: <4C85E867.3060308@kangaroot.net> References: <4C767527.2060208@kangaroot.net> <4C7B9E63.6060804@kangaroot.net> <201008301516.09914.iggy@theiggy.com> <4C7CF460.40204@redhat.com> <4C80DD6D.5030709@kangaroot.net> <4C83574F.6030906@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: kvm@vger.kernel.org, Juan Quintela To: Avi Kivity Return-path: Received: from mx-be.kangaroot.net ([62.213.203.171]:38744 "EHLO mx-be.kangaroot.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753840Ab0IGHZG (ORCPT ); Tue, 7 Sep 2010 03:25:06 -0400 In-Reply-To: <4C83574F.6030906@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: Hey Juan, do you also think future releases of kvm will have support for live migration from older versions? We're quite keen on knowing this, as we need to make a decision on what to build our stuff on. Being able to transparently move virtual servers onto a host running a newer version is definitely a feature we need... Thanks in advance, Nils On 09/05/2010 10:39 AM, Avi Kivity wrote: > On 09/03/2010 02:35 PM, Nils Cant wrote: > > First, don't trim the cc list. It's evil. > >> Is this something we can depend on for future releases then? >> >> If we decide now to build a virtual hosting farm on 0.12, will we be >> able to use live migration in the future if we decide we want to >> upgrade to 0.13 or later? > > I believe so. Juan, can you confirm? >