Object Storage
A storage architecture that manages data as objects (file + metadata + ID) rather than blocks or files. S3 is the gold standard. Infinitely scalable, cheap, and durable.
What is Object Storage?
A storage architecture that manages data as objects (file + metadata + ID) rather than blocks or files. S3 is the gold standard. Infinitely scalable, cheap, and durable.
Object Storage is a intermediate-level concept that sits in the Database Types & Storage area of system design. Engineers reach for it whenever they need to reason about real-world trade-offs in that space — not just for textbook correctness, but because real production systems at companies like Netflix, Amazon, and Google make these decisions every day.
If you want to go deeper than this definition — with diagrams, code, and a quiz to lock it in — work through the "Object Storage" lesson linked below. It walks through the why, the mechanism, the trade-offs, and how the giants actually use it in production.
Learn Object Storage in depth
Full interactive lesson with diagrams, code examples, real-world references, and a quiz.
Open the Object Storage lessonSee also
Related glossary terms you might want to look up next.
CDN
A network of servers distributed globally that caches content close to users. Netflix uses CDNs to stream video from servers near you, not from one central location.
Database
An organized collection of data that can be easily accessed, managed, and updated. The backbone of almost every application.
Data Lake
A centralized repository that stores raw data at any scale in its native format. Unlike a data warehouse, data doesn't need to be structured or cleaned before loading.