XenServer is a server virtualization platform that offers near bare-metal virtualization performance for virtualized server and client operating systems.
XenServer uses the Xen hypervisor to virtualize each server on which it is installed, enabling each to host multiple Virtual Machines simultaneously with guaranteed performance. XenServer also allows you to combine multiple Xen-enabled servers into a powerful Resource Pool, using industry-standard shared storage architectures and leveraging resource clustering technology created by XenSource. In doing so, XenServer extends the basic single-server notion of virtualization to enable seamless virtualization of multiple servers as a Resource Pool, whose storage, memory, CPU and networking resources can be dynamically controlled to deliver optimal performance, increased resiliency and availability, and maximum utilization of data center resources.
XenServer allows IT managers to create multiple clusters of Resource Pools, and to manage them and their resources from a single point of control, reducing complexity and cost, and dramatically simplifying the adoption and utility of a virtualized data center environment. With XenServer, a rack of servers can become a highly available compute cluster that protects key application workloads, leverages industry standard storage architectures, and offers no-downtime maintenance by allowing Virtual Machines to be moved while they are running between machines in the cluster. XenServer extends the most powerful abstraction: virtualization across servers, storage and networking to enable users to realize the full potential of a dynamic, responsive, efficient data center environment for Windows and Linux workloads.
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