Learn about CERN's journey with Ceph storage implementation in this 31-minute conference talk that explores their evolution from a 3PB cluster in 2013 to managing 100PB across multiple data centers today. Discover how CERN operates Ceph at scale to support various use cases including basic IT infrastructure, databases, and High-Performance Computing (HPC). Gain valuable insights into the challenges faced in a scientific computing environment, understand the performance and scalability improvements implemented over time, and explore key operational lessons that can benefit other Ceph users. Presented by Dan van der Ster, this talk provides practical knowledge for organizations looking to implement or scale their Ceph storage solutions.