ABSTRACT
VMware GSX Server and ESX Server are two of the most widely distributed and deployed server virtualization platforms in the industry. To retain this status, VMware is continuously releasing new features with each minor and major release, making the virtualization platforms more robust, secure, and easier to use while at the same time extending its capabilities. Th is chapter describes the benefi ts of upgrading to the latest release, useful considerations during the upgrade planning stage, and a step-by-step upgrade process not only for the physical host server, but for the virtual machines as well.
