On 09/07/2011 09:34 AM, Rudi Ahlers wrote: > Red Hat (and thus CentOS) has native XEN support but dropped XEN in > favor of KVM (which is not as mature yet) in RH 6. This deserves clarification... Red Hat is a business, and made a simple business decision. Maintaining Xen support would have meant maintaining a very large set of patches. They made the decision that the effort (and money) needed to maintain Xen outside of the mainline kernel was not worth it. KVM was not chosen over Xen so much as KVM was a much less expensive hypervisor to support. As for it being mature or not; Well, put on your kevlar pants because that is a matter of opinion. As a follow-up, Xen dom0 support began getting into the mainline kernel at 2.6.33 (EL6 is based on 2.6.32). It is very likely that we will see Xen dom0 support returned in the next major release. -- Digimer E-Mail: digimer at alteeve.com Freenode handle: digimer Papers and Projects: http://alteeve.com Node Assassin: http://nodeassassin.org "At what point did we forget that the Space Shuttle was, essentially, a program that strapped human beings to an explosion and tried to stab through the sky with fire and math?"