Three kinds of storage, and why it matters
"Just store the file" turns out to have three very different answers in the cloud, and picking the wrong one is a classic, and expensive, beginner mistake. People put a database on the wrong storage and it's slow; or they store millions of images on a disk that can only attach to one server. The three types are object, block, and file storage. Each is built for a different shape of data.
Note: Who this is for: Beginners. If you've wondered when to use S3 vs an EBS volume vs a shared file system, this clears it up for good.
The everyday analogy
In the real world
