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SmugMug spent six years split between its datacenters and AWS. Find out how and why SmugMug went 100% AWS, migrating 30 TB of databases, hundreds of frontends, load balancing, and caches, across the US in one night with zero downtime.We show you specific techniques and processes that made our large-scale migration a resounding success: moving massive MySQL databases, testing and sizing a new AWS infrastructure, automating AWS operations, managing the risks involved in wholesale infrastructure change, and architecting for reliability in multiple AWS Availability Zones. We talk about the performance, scalability, operational, and business benefits and challenges we've seen since moving 100% to AWS. Finally, we share secrets about our favorite AWS products.