My question is. Microsoft supports these KVM, VirtualBox for their windows servers? IMHO, I believe this would be a good point, especially because today, we have no more only windows, neither only Linux, in 99% all datacenter are heteregeneos plataform. If Microsoft not endorses KVM, Virtual Iron, VirtualBox.... our way to achieve any related mission on virtualization will be quite harder, because most guys use virtualization to play Windows too.

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Alexey Eremenko 28 Junho, 2010 >>> Well, quite interesting

Actually besides SUSE, I think Debian is the only distro packaging Xen Dom0 kernels nowadays. (Mandriva has older Xen Dom0 kernels, not sure about Ubuntu) ofc. Red Hat supports Xen fully in RHEL 5, but this won't be in RHEL 6, where Red Hat migrates to KVM. as for OSS Virtualization in general - both KVM and VirtualBox do a wonderful job for a lot of people. Xen's main advantage over others is Linux-over-Linux in PV mode... for which OpenVZ can be used just as well... If I were to create an OSS virtualization solution, I would go for OpenVZ for Linux-on-Linux approach, and VirtualBox for all the rest needs. -- -Alexey Eromenko "Technologov" -- To unsubscribe, e-mail: opensuse-virtual+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-virtual+help@opensuse.org -- To unsubscribe, e-mail: opensuse-virtual+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-virtual+help@opensuse.org

On Tuesday 29 June 2010, 0bo0 wrote:

Beyond that, I'm not at all sure what the value of it "is" or "is not" Linux ... is.

Because Xen is its own kernel that then loads an instance of Linux as its primary O/S it menas that a system that was working correctly with a non-Xen kernel may fail if proprietary graphics drivers are installed. Sure, you don't need that stuff on a production box, but on my dev box I like to do more than just play with virtualization. I found that XEN + nvidia | radeon didn't work. I also recall probs with vnc to a remote XEN box. OTOH, kvm fits snugly into the whole stack. Nothing needs to be changed. If the setup was working before the KVM module was loaded it will continue to work afterwards.

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whatever technical advantage it may have had is gone.

Unfortunately, the facts simply don't bear that out ...

That depends - which facts? When I first looked at this seriously a year ago I found facts then that related to early implementations of KVM. Sure, XEN was better/faster/whatever. Since then, KVM has matured and virtio drivers have appeared. Performance wise I am yet to see any problems. It is good enough for me. Paul -- Paul Reeves -- To unsubscribe, e-mail: opensuse-virtual+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-virtual+help@opensuse.org