From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:51741) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eOhRr-0000kj-BS for qemu-devel@nongnu.org; Tue, 12 Dec 2017 05:06:09 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eOhRh-0002il-UD for qemu-devel@nongnu.org; Tue, 12 Dec 2017 05:06:03 -0500 Received: from mx1.redhat.com ([209.132.183.28]:57396) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1eOhRh-0002iF-O1 for qemu-devel@nongnu.org; Tue, 12 Dec 2017 05:05:53 -0500 Date: Tue, 12 Dec 2017 10:05:49 +0000 From: "Dr. David Alan Gilbert" Message-ID: <20171212100548.GB2409@work-vm> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Subject: Re: [Qemu-devel] Cross version migration question (RH specific) List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Gaurav Poothia Cc: qemu-devel@nongnu.org * Gaurav Poothia (gaurav.poothia@gmail.com) wrote: > Hi, > I have some dumb questions about this Red Hat cross version migration > support matrix: > https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/virtualization_deployment_and_administration_guide/sect-kvm_live_migration-live_migration_and_red_hat_enterprise_linux_version_compatibility_ > > Questions: > - Are all RHEL 7.x running the same version of QEMU? They're all a 1.5.3 derivative. > - Then the forward and backward migration support across minor > releases (rows 3 and 4 in grid) is trivial right? Yes, pretty much; we still have to check it of course as we add bug fixes and things. > - Does RHEV-H rev the QEMU versions more aggressively across minor versions? Yes (see the qemu-kvm-rhev packages or in CentOS qemu-kvm-ev) > - Where can I find a similar cross version migration support matrix for RHEV? That's a good question; I'm not sure which docs cover that - although at that level it's not just qemu versions that need considering. The qemu level is similar to that above though; 6.x inwards is valid, and some backwards and forwards are allowed within the 7.x range, even though they're quite different versions of qemu. Dave > > Thanks! > Gaurav > > > -- > Kiva.org - Loans That Change Lives -- Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK