Define Hypervisor And Xen Server?

A hypervisor is a software layer that sits between the hardware and the virtual machines (VMs) running on a physical server. It is also known as a Virtual Machine Monitor (VMM) and is responsible for managing and coordinating the virtualization environment. The hypervisor provides a virtualized hardware layer to the VMs, allowing them to run their own operating systems and applications on a single physical server.

Xen Server is an open-source hypervisor that is used to create and manage virtual machines. It is based on the Xen Project hypervisor, which is a popular and widely used open-source hypervisor. Xen Server provides a complete virtualization platform that includes features such as live migration, high availability, and disaster recovery. It is designed for use in data centers and cloud environments, providing a scalable and efficient platform for running multiple VMs on a single physical server. Xen Server is available in both free and commercial editions, providing a range of options for organizations of all sizes.