U-Series Appliance with vMotion

VMware vMotion can be used to keep the Virtual U-Series Appliance continuously available even if the physical server running the virtual image goes offline for any reason. As seen in this diagram, the U-Series Appliance virtual image is deployed to ESX Server X. This server is continuously mirrored to Server Y such that if a hardware failure were to occur, the virtual image continues to be available as if nothing happened.