Why Storage Surprise Billing Devastates Growing Platforms — and Practical Paths Out

https://tiny-wiki.win/index.php/Why_Mixing_Hot_and_Cold_Data_Breaks_Systems_at_Millions_of_Requests_per_Second:_A_Practical_Tutorial

Growing platforms hit a predictable but painful feedback loop: storage usage climbs, requests spike, engineers add higher-performance tiers to stop user complaints, and a month later finance delivers a bill that feels like a betrayal