PlanetScale Metal: Ditching the Cloud Database IO Bottleneck

This article explores the history of computer storage technologies, from tape to hard disk drives to solid-state drives (SSDs), and the IO performance challenges brought about by cloud computing. Traditional cloud database services typically use network-attached storage (NAS), resulting in high latency and IOPS limitations. PlanetScale's Metal product uses local NVMe drives, directly connecting compute and storage, to achieve extremely low latency, unlimited IOPS, and high data durability, completely solving the IO bottleneck problem of cloud databases.