Category Archives: Official

News and/or announcements about Citrix XenServer.

2019: The Beginning of a New Year

This week marks the beginning of the new year. And with the new year comes a new focus for PXS:

With the unfortunate changes that Citrix imposed on XenServer in Version 7.3 the viability of XenServer as a robust, versatile, feature-rich virtualization platform was seriously diminished for many users. But that change precipitated another, more positive change – The creation of the XCP-ng Project.

We feel that XCP-ng represents not just another virtualization platform; not just a different licensing structure for XenServer; but a rebirth of the XenServer platform. With this change: Many bug reports that had languished have been resolved. Many features that were wanting have been introduced. And many abilities that had been restricted have been made available, for free! And these changes are good!

We feel that XCP-ng represents a fuller realization of what XenServer can be. We feel that the potential of XenServer has been more fully realized. And we feel that XCP-ng offers users a more complete solution for building IaaS clouds.

So, going forward, we’ll be using XCP-ng in all of our XenServer tutorials. Almost every XenServer feature that we employ should function identically in XCP-ng and in the Citrix version of XenServer – Citrix Hypervisor. But, where there is a functional difference between XCP-ng and Citrix Hypervisor, we’ll do our best to explain the difference and illustrate both implementations of that functionality.

I hope that you’re as excited to get started with XCP-ng as we are. I look forward to discovering the full potential of free and open source software in creating/operating a robust, versatile, feature-rich IaaS cloud.

Eric Pretorious, Publisher
Practical XenServer

One Year Later: The Licensing Changes Introduced in XenServer 7.3

Last week marked the One Year Anniversary of the licensing changes introduced in XenServer 7.3. To say that the changes were tectonic would not be an exaggeration:

As many of you will be aware, XenServer is available in three editions: Free, Standard, and Enterprise. All of them are installed from the same ISO, and all are equally open source. The Standard edition is almost identical to the Free edition in terms of feature set, but includes commercial support and an extended period of hotfix availability from Citrix, whilst the Enterprise edition enables a variety of additional features.

Having carefully considered what features are in each edition, we’ve taken the decision to move some features out of the Free edition, and into Standard. The full list of features being moved is:

  • Dynamic Memory Control
  • Xen Storage Motion
  • Active Directory Integration
  • Role Based Access Control
  • High Availability
  • GPU Pass-Through
  • Site Recovery Manager (Disaster Recovery)
  • XenCenter Rolling Pool Upgrade Wizard
  • Maximum Pool Size Restricted To 3 Hosts (existing larger pools will continue to work, but no new host joins will be permitted)
This will therefore make the Standard edition substantially different to the Free edition. No features are moving from Free to Enterprise. You can find all of the details in the full XenServer 7.3 feature matrix.
Those changes set in motion other events that have fundamentally changed the XS landscape by causing other folks in the XS Ecosystem to “fork the code” of Citrix XenServer – now called Citrix Hypervisor – and launch a separate, more open, more free development track a la XCP-ng.

In the very near future we’re going to follow the value and resume development using XCP-ng because we believe that this is what’s needed most by the XS Community.

Stay tuned for more XenServer Goodness! ©

Eric Pretorious, Publisher
Practical XenServer