MaGe Linux Operations

Jun 25, 2014 · Fundamentals

Understanding Hard Drive Interfaces and Storage Solutions: DAS, NAS, and SAN

This article explains the differences between parallel and serial hard‑disk interfaces, details ATA and SCSI protocols, and compares three major storage architectures—Direct‑Attached Storage (DAS), Network‑Attached Storage (NAS), and Storage Area Networks (SAN)—including their use cases, performance, and cost considerations.