Citrix Systems XenServer 5.5

This section outlines Citrix's reasons for publishing the XenServer source code, how open-sourcing affects the virtualization landscape and the advantages of XenServer.

Citrix Systems Inc.'s decision to make its virtualization platform, XenServer 5.5, open source turned heads and

some even questioned the move. While XenServer does not enjoy the market share of VMware vSphere 4 or Microsoft Hyper-V R2, it is a viable, powerful and reliable virtualization alternative.

This section of the open source guide to virtualization platforms outlines Citrix's justification for publishing the XenServer source code, how open-sourcing the code might affect the virtualization landscape and the advantages of XenServer over its competition.

Table of Contents
Citrix Systems XenServer 5.5

Red Hat Enterprise Linux 5.4

Novell SUSE Linux Enterprise virtualization 

The Oracle VM virtualization platform

The open source Oracle VirtualBox virtualization platform 

Open source virtualization vendor comparisons

Additional resources for open source virtualization platforms 

Simon Crosby explains Citrix's open source XenServer move
In this podcast, Simon Crosby, Citrix Systems' chief technology officer and founder of XenSource, discusses Citrix's decision to open-source XenServer 5.5 . Crosby explains Citrix's reasoning and how XenServer fits into the larger Xen Cloud Platform. XenServer's move to open source raised numerous questions, and Crosby responds to them all in this podcast.

Open source Citrix XenServer platform FAQ
Citrix's decision to publish XenServer's source code has was a significant event for the open source community. XenServer is a major virtualization platform, so the move to open-source XenServer's code affects other Xen-based virtualization products. Find out the answers to some commonly asked questions about open source XenServer in this FAQ by expert Sander van Vugt.

Citrix XenServer 5.5 gains parity with VMware
Citrix XenServer has closed the gap with VMware, the current reigning champion of virtualization, according to expert Rick Vanover. In this podcast transcript, Vanover discusses how XenServer has greatly improved its management and security features to rival those of VMware. Check out the entire conversation for more information about new XenServer features and how they may spell trouble for VMware.

Citrix Systems server back ends for desktop virtualization: XenServer
Citrix's virtual desktop infrastructure, known as XenDesktop, tightly integrates with XenServer 5.5. Combined, XenDesktop running on top of a XenServer back end excels at resource delivery and management. In this section of our guide on server back ends for desktop virtualization, learn how XenServer can serve the needs of large and complex desktop virtualization implementations.

Citrix adds Active Directory integration to XenServer 5.5
While it may not garner the recognition of VMware and Microsoft, Citrix XenServer is a longtime player in the virtualization marketplace. To stay competitive, Citrix has added new features to XenServer, such as Active Directory and shared-storage repositories. In this tip, you will learn more about key features and capabilities that make XenServer a viable alternative to vSphere and Hyper-V.

This was first published in February 2010

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