From VMware Site:
Centralized Management for VMware Server Enhance your VMware Server deployment by adding centralized management with VirtualCenter for VMware Server. Priced for small and medium businesses (SMBs), this easy-to-use offering has everything you need to start experiencing the benefits of virtualization in your IT infrastructure, including:
- Increased utilization of existing servers, minimizing the need to purchase new hardware.
- Rapid server provisioning—in minutes instead of hours or days.
- Centralized management and monitoring of the virtual IT environment.