What is OpenVZ?
“In short, OpenVZ is the only highly scalable virtualization technology with near-zero overhead, strong isolation and rapid customer provisioning that’s ready for production use right now. Deployment of OpenVZ improves efficiency, flexibility and quality of service in the enterprise environment. A OpenVZ VPS is an isolated entity which performs and executes exactly like a stand-alone server except you share resources with other users. The VPS can be rebooted independently and have root access, users/groups, IP address(es), memory, processes, files, applications, system libraries and configuration files.”