Piston Enterprise OpenStack™ Under the Hood is a technical brief that examines the inner-workings and technologies that power our software products, discussing Null-Tier Architecture, the Moxie HA high-availability framework, Gridcentric's Virtual Memory Streaming, and our seamless security update service. You'll learn about Paxos, Ceph, CloudBoot, Brewer's Cap Theorem, and why we think being opinionated is a good thing.