In this session we will look at best practices for administering large MongoDB deployments in the cloud. We will discuss tips and tools for capacity planning, fully scripted provisioning using chef and knife-ec2, and snapshotting your data safely, as well as using replica sets for high availability across AZs. We will cover the good, the bad and the ugly of disk performance options on EC2, as well as several filesystem tricks for wringing more performance out of your block devices. And finally we will talk about some ways to prevent Mongo disaster spirals and minimize your downtime. This session is appropriate for anyone who already has experience administering MongoDB. Some experience with AWS or cloud computing is useful, but not required, for all of the material.