Virtualization Systems

Virtualization, as the process of migrating application software, operating systems, server devices, repositories, and networks to the virtual plane, has long been a major trend in storage and data sharing. The main benefits include improving productivity and availability of resources, scalability, ease of administration, flexibility of deployment and process automation.

Known to date virtualization systems:

ESXi and vSphere from WMware are the leaders in virtualization, they are very popular due to the accessible interface, versatility in support of various operating systems, wide functionality, supported by a large amount of technical documentation;
Hyper-V, a Microsoft product based on OSWindows Server, is an easy-to-configure and maintain hypervisor that supports all versions of Windows operating systems;
KVM (Kernel-based Virtual Machine) - a virtualization solution for Linux / x86 platforms, is universal in terms of support for other versions of operating systems, supports hardware extensions (Intel VT and AMD-V);
OpenVZ - a free virtualization system implemented on the Linux kernel;
Proxmox Virtual Environment (Proxmox VE) - an open source virtualization system based on Debian GNU / Linux (debian version 1.x, debian 6 version 2.x);
Xen is a versatile hypervisor designed at the University of Cambridge's computer lab and licensed under the GPL. The main features: support for the mode of paravirtualization in addition to hardware virtualization, the minimum code of the hypervisor itself due to the removal of the maximum number of components beyond the hypervisor.