1) Virtuozzo creates an isolated, secure virtual environments (VEs) on a single physical server enabling better server utilization, ensuring guaranteed resources and preventing applications from conflicting with each other. Each Virtual Enviornment performs and executes exactly like a stand-alone server like a dedicated server.
2) With the help of Virtuozzo each VPS can be rebooted independently and have users, IP addresses, processes, system libraries and configuration files.
3) Each VPS Hosting packages can be upgraded or downgraded without any down time at any point of time. Each VPS plan can also be upgraded to a DDS (1VPS on a single server) without any configuration changes on your side.