virtualization
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Xen
Xen ist ein Hypervisor , also eine Software , die den Betrieb mehrerer virtueller Maschinen auf einem physischen Computer erlaubt. Sie entstand an der britischen Universität Cambridge und wird heute von dem US-Unternehmen Citrix Systems weiterentwickelt. Technische Details [ Bearbeiten ]
Xen / ˈ z ɛ n / is a hypervisor providing services that allow multiple computer operating systems to execute on the same computer hardware concurrently. The University of Cambridge Computer Laboratory developed the first versions of Xen. The Xen community develops and maintains Xen as free software , licensed under the GNU General Public License (GPLv2). Xen is currently available for the IA-32 , x86-64 and ARM computer architectures. [ edit ] Architecture
Xen
xen
Free VMware vSphere Hypervisor: Bare Metal Hypervisor (Based on VMware ESXi)
Get started with free virtualization. VMware vSphere Hypervisor is a production-ready hypervisor that lets you virtualize your servers, helping you save time and money on managing your IT infrastructure. Built on the world’s smallest and most robust architecture, VMware vSphere ESXi, the vSphere Hypervisor, sets the industry standard for reliability, performance and ecosystem support. Consolidate your applications onto fewer servers and start saving money through reduced hardware, power, cooling and administration costs.
Platform virtual machines are software packages that emulate the whole physical computer machine, often providing multiple virtual machines on one physical platform. The table below compares basic information about platform virtual machine (VM) packages. [ edit ] General [ edit ] Features
Comparison of platform virtual machines
x86 virtualization
In computing , x86 virtualization is the facility that allows multiple operating systems to simultaneously share x86 processor resources in a safe and efficient manner, a facility generically known as hardware virtualization . In the late 1990s x86 virtualization was achieved by complex software techniques which overcame the processor's lack of virtualization support and attained reasonable performance. In the mid-2000s, both Intel and AMD added hardware support to their processors making virtualization software simpler, and later hardware changes provided substantial speed improvements.