The Open Source Infrastructure and Management Virtualization Platform.
CloudStack. Why You Really, Truly Don’t Want a Private Cloud. The more you focus on the business benefits of Cloud, the more likely you'll be leaning toward public over private deployment models.
Furthermore, this mind shift isn't all about security risks. Once you work through the issues, you'll likely come to the same conclusion: there's generally little or no solid business reason to build a private Cloud. I had the pleasure of speaking at two quite different Cloud Computing conferences last week: Opal’s Business of Cloud Computing in Dallas and UBM’s CloudConnect in Bangalore. As the conference names and locations might suggest, the former was the more business-oriented while the latter was chock full of techies. What I didn’t expect, however, was that the business Cloud crowd had a more mature, advanced conception of Cloud than the technical audience.
Hypervisor. Storage. Network.