VMware VirtualCenter Server for VMware Server - license - 1 instance

Achieve the highest levels of efficiency, automation, simplicity and security in managing a virtualized IT environment of any size with VMware VirtualCenter. VirtualCenter lets you rapidly provision virtual machines and monitor performance of physical servers and virtual machines. VirtualCenter intelligently optimizes resources, ensures high availability to all applications in virtual machines and makes your IT environment more responsive with virtualization-based distributed services.

VirtualCenter Server is the central control node for configuring, provisioning and managing distributed virtual IT environments. VMware VirtualCenter Server brings together multiple VMware ESX hosts and combines their physical resources for the most efficient utilization. VMware VirtualCenter Server stores and organizes data about physical hosts and virtual machines. Distributed virtualization services such as VMware VMotion, HA, DRS and VCB then utilize this information to deliver the optimally utilized, efficient and highly available datacenter.