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Xen Xen and Xen
jnelson3149
Member
in General
I am totally confused by the different flavors of Xen.
At Xenserver.org they have Xenserver which appears to be an open source version of the Citrix product.
At xenproject.org they have HVM and PV. From what I can see HVM is complete Hardware Virtualization and PV is more like Open VZ.
What are the differences between the projects? If HVM and Xenserver are both bare metal, which is better?
Comments
This might help: http://serverfault.com/questions/222010/difference-between-xen-pv-xen-kvm-and-hvm
That helps with the two Xenproject versions but doesn't discuss the Citrix version. Thanks for the info!
The citrix version can run both pv and hvm, they have a different api, more or less, called xapi and some customization, but it is simple xen more or less, able to run both types.
Be aware that a combination of pv and hvm is now out, it can run a full virtualization at paravirtualization costs (or so it claims).
In any case, Xen-PV has the same in common with OVZ as the elephant and the fly, they are both animalia, but that is all. Xen-PV runs own kernel which gives great power to the owner of the vm, among other things.
Really helpful information