How a $10M Payment Platform Stopped Chasing Manual Scaling and Learned What 99.999999999% Durability Actually Means

https://www.list-bookmarks.win/storage-optimization-playbook-partitioning-by-workload-duplicate-detection-and-stopping-cost-waste

This is a pragmatic case study about an engineering team that treated outages as a staffing problem. They accepted manual scaling, made ad hoc fixes during peak traffic, and treated storage durability as a marketing claim