A little more than two years ago, virtualization.info covered an emerging project called OpenNEbula (formerly GridHypervisor) which was one of the earliest open source solutions to manage an Infrastructure-as-a-Service (IaaS) cloud computing architecture built on Xen.
The project, based on a research started in 2005 by Ignacio M. Llorente and Rubén S. Montero, matured a lot in these years. It now offers cloud management capabilities for most virtualization platforms, including Xen, KVM, VMware ESX/ESXi, VMware Server and any other virtual machine monitor that supports the libvirt libraries.
Plus, it offers capability to manage hybrid clouds, through the support for public clouds like Amazon EC2 and ElasticHosts.
Version 1.4 of OpenNebula was released in December 2009, and an upcoming 1.4.2 is expected to introduce support for Oracle VM VirtualBox.








