Just to add (tho might be out of topic a bit) U can use RHEV (which is based on KVM) and setup different virtualization clusters of AMD and Intel so they only migrate towards each other.
Just my 2 cent.. On Thu, Oct 7, 2010 at 11:48 AM, Justin Clift <jcl...@redhat.com> wrote: > On 10/07/2010 01:20 AM, Mindaugas Riauba wrote: > >> Hello, >> >> In RHEL6 beta virtualization document >> ( >> http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Virtualization/sect-Virtualization-Virtualization_limitations-KVM_limitations.html >> ) >> it is written that "Live migration is only possible with CPUs from the >> same vendor (that is, Intel to Intel or AMD to AMD only). >> >> But in KVM Wiki (http://www.linux-kvm.org/page/Migration) I see that >> "You can migrate a guest between an AMD host to an Intel host and >> back". >> >> What could be the state of this in RHEL6 final? It is somewhat >> important for us because now we have Intel/AMD mix for RHEL5 Xen hosts >> and need to plan several more servers for virtualization. >> I understand that I will be able to use RHEL5 Xen as hosts for quite >> some time still. But since many things improved during those years I >> would like to move to new platform when it's ready. Not production >> boxes on day-0 of course. :) >> > > Just asked internally, and got this info: > > ******************************************************************** > > Cross vendor migration is not supported neither for kvm or xen. > > It can work in theory but it's not complete. Also the extra > flexibility cost performance since the virtualized cpu needs to be > [the] least common denominator. > > For these reasons it's out of RHEL for the foreseen future. > Keep enjoying Xen and hope you'll try out kvm soon as well. > > Thanks, > Dor > > ******************************************************************** > > Safest bet looks to be sticking with the same CPU Vendor where you > need to do migration. > > Hopefully that helps. :) > > Regards and best wishes, > > Justin Clift > > > _______________________________________________ > rhelv6-beta-list mailing list > rhelv6-beta-list@redhat.com > https://www.redhat.com/mailman/listinfo/rhelv6-beta-list > -- .: war|ola :. Use Fedora Linux for better computing experience http://fedoraproject.org
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