Linux KVM Linux KVM is the technology behind our iCloudSlice and iCloudDedicated services. It has quickly established itself as a superior alternative to Xen, by relying on mainline Linux drivers which have far more development effort put into them.
It contains live migration functionality, and in combination with DRDB disk mirroring via network, allows cloud functionality with a small pool of hardware.
One of the other features we are making extensive use of is the functionality to mirror memory, that is where you have two cloud servers as guests on one physical machine, the physical machine uses only one set of physical RAM for memory pages that are identical on the two guest machines. This allows us to offer greater densities on private clouds, providing greater value without sacrificing performance or functionality.
