Openstack is celebrating its six month anniversary! OpenStack is a collection of open source technologies delivering a massively scalable cloud operating system. OpenStack is currently developing two interrelated projects: OpenStack Compute and OpenStack Object Storage.
OpenStack Compute is the underlying cloud computing fabric controller for the OpenStack cloud. This means that all activities within the OpenStack cloud (such as starting and stopping virtual machines) are handled by this product. In effect, OpenStack Compute is the “operating system” for the OpenStack cloud and manages all resources, networking, authorization, and scalability needs for the cloud. OpenStack Object Storage is software for creating redundant, scalable object storage using clusters of commodity servers to store terabytes or even petabytes of data.
Openstack is backed by Rackspace, NASA, Dell, Citrix, Cisco, Canonical and over 50 other organizations. All of the code for OpenStack is freely available under the Apache 2.0 license. Anyone can run it, build on it, or submit changes back to the project