VMware vSphere is a Cloud Operating System designed especially for small IT environments with fewer than 20 physical servers, the Essentials and Essentials Plus editions of VMware vSphere 4 deliver enterprise-class capabilities in a cost-effective solution packages for organizations that want optimize and protect their IT assets with minimal up-front investment.
By adopting vSphere Essentials, customers can more effectively utilize server, network and storage resources dynamically as a single pool or “internal cloud” to protect business-critical applications and data.
Compare ESXi and vSphere
VMware ESXi is the easiest way to get started with virtualization—and it’s free-of-charge.
Consolidate your applications onto fewer servers and start saving money through reduced hardware, power, cooling and administration costs. VMware ESXi has been optimized and tested to run even your most resource intensive applications and databases with minimal performance overhead.
Why not compare ESX v ESXi and then download a copy !
Elastic Server VM builder is a great new way to build your own software appliances and virtual machines.
You can choose Fedora 10 or Ubuntu 8.04 LTS as your base OS and in a few clicks create Amazon EC2 AMI, ElasticHost, KVM, VMware, Xen VMs !
The VMware VMs that Elastic Server creates are not just for servers and seem to work fine on VMware Fusion and VMware Player with a nice separate VMDK for your swap file !
OpenNebula on Ubuntu allows virtual machines to be placed and re-placed dynamically on a pool of physical resources. This allows a virtual machine to be hosted from any location available.
Eucalyptus – Elastic Utility Computing Architecture for Linking Your Programs To Useful Systems – is an open-source software infrastructure for implementing “cloud computing” on clusters. The current interface to Eucalyptus is compatible with Amazon’s EC2, S3, and EBS interfaces, but the infrastructure is designed to support multiple client-side interfaces. Eucalyptus is implemented using commonly available Linux tools and basic Web-service technologies making it easy to install and maintain.
The Ubuntu Enterprise Cloud is powered by Eucalyptus, an open source implementation for the emerging standard of EC2. This solution is designed to simplify the process of building and managing an internal cloud for businesses of any size, thereby enabling companies to create their own self-service infrastructure.
The WaveMaker Studio Cloud Edition test drive program is now open
BlueLock has created a VMware based managed cloud hosting solutions that promise high availability, fanatical expert support and a more scalable and cost-efficient operating model for your IT infrastructure without sacrificing security or performance.
The OpenVZ project have released virtual appliance software for Ubuntu giving users the ability to run the popular Ubuntu 7.10 distribution in a Linux container. Users simply download a template and then can use OpenVZ software to create a virtual server running Ubuntu 7.10 in about one minute !