ESX Server transforms physical systems into a pool of logical computing resources. Operating systems and applications are isolated in multiple virtual machines that reside on a single piece of hardware. System resources are dynamically allocated to any operating system based on need, providing mainframe-class capacity utilization and control of server resources.

ESX Server simplifies server infrastructure by partitioning and isolating server resources in secure and portable virtual machines. ESX Server enables these server resources to be remotely managed, automatically provisioned, and standardized on a uniform platform. Advanced resource management controls allow IT administrators to guarantee service levels across the enterprise. ESX Server runs directly on the system hardware to provide a secure, uniform platform for deploying, managing, and remotely controlling multiple virtual machines.