Produkter - Citrix/Xensource

Citrix XenServer v5

Overview

Citrix XenServer enables businesses to deploy high-performance Windows and Linux virtual machines rapidly and easily, and to manage them and their related storage and networking resources from a single easy-to-use management console.

The foundation of Citrix XenServer v5 is the open source Xen™ hypervisor, an open, proven and fully supported engine for server virtualization.

What is Xen?

Xen is a unique open source technology invented by a team led by Ian Pratt at the University of Cambridge (who subsequently founded XenSource) and developed cooperatively by the world’s best engineers at over 20 of the most innovative data center solution vendors.
With Xen virtualization,a thin software layer (known as the Xen hypervisor) is installed directly on the hardware, or "bare metal," and is thereby inserted between the server’s hardware and the operating system. This provides an abstraction layer that allows each physical server to run one or more "virtual servers," effectively decoupling the operating system and its applications from the underlying physical server.

Xen’s paravirtualization technology is widely acknowledged as the fastest and most secure virtualization software in the industry, and is enhanced by taking full advantage of the latest Intel VT and AMD-V hardware virtualization assist capabilities. Xen is exceptionally lean-- less than 50,000 lines of code – which translates to extremely low overhead and near-native performance for guests.

Introducing Citrix XenServer v5

The inventors and lead developers of Xen, with the rest of the Citrix XenServer product team, take this powerful virtualization engine and build out a full managed virtualization platform around it, designed for efficient management of Windows and Linux virtual machines.

Citrix XenServer v5 combines the performance, security, and openness of the Xen technology with XenCenter comprehensive management -- a platform perfect for rapid adoption of virtualization for server consolidation, software development and test, virtual desktops, and business continuity.

Citrix XenServer v5 is a native 64-bit virtualization platform, with the scalability required by business-critical applications. The highest host and guest CPU and memory limits available, coupled with fine-grained resource controls for CPU, network and disk, enable it to deliver optimal quality of service.