This session will provide an introduction to the OpenStreetMap operations team, the core OpenStreetMap setup, and its operational management. It will discuss the website and API architecture, including infrastructure, monitoring and stats, its frontend and backend, testing and deployment, and future plans. Grant will also briefly touch on the tile and caching architecture. If you’re interested in what powers OpenStreetMap and make it tick, come to this session.
Also check here you would like to support the ongoing funding drive for servers: http://donate.openstreetmap.org
State of the Map US - San Francisco 2013