Two years ago, Rackspace set out on a quest to build a public cloud in the open, powered by OpenStack. Building the Open Cloud from an idea to a viable deployment of thousands of servers has come with lots of growing pains. We've also gained a little bit of wisdom along the way and are ready to keep pushing for great things. In this case study, we will talk about the various deployment strategies we have used, our experience with them, and how what worked for 200 nodes didn't always work for 1,000 nodes. We'll end by look at how we will get to the first 10,000+ node deployment and stay continuous.