In this session, I discussed the scaling limitations of Prometheus and how Grafana Mimir addresses them through its distributed, horizontally scalable architecture. I covered the core components of Grafana Mimir, its read and write flow, and the architectural patterns that enable it to efficiently handle large-scale metrics. The session concluded with a live technical demonstration of configuring Prometheus for remote write to Mimir, setting up Mimir as a Grafana data source, visualizing metrics through dashboards, and exploring the Mimir Admin UI along with its key configuration files.