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

https://www.random-bookmarks.win/how-a-growing-saas-platform-hit-a-storage-ceiling-at-5m-users

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