When most people hear “data storage,” they think about conventional file level storage. The storage solutions used by typical end users are file systems that are mapped to individual hard drives.
However, file systems are only one way to organize data. Another popular method -- and one that is particularly useful when setting up virtual machine storage, network attached storage and SAN storage -- is block storage.
This article defines block storage, discusses common block storage use cases and explains what makes block storage different from file level storage. Continue reading