4.1.2. Azure Files

💡 First Principle: Azure Files provides fully managed, cloud-based file shares accessible via standard network protocols. The key insight is protocol compatibility: Azure Files speaks SMB (Windows) and NFS (Linux), so existing applications that expect a file server "just work." Its core purpose is enabling "lift-and-shift" migrations of applications that rely on file shares without code changes.

What It Is: A service that offers fully managed file shares in the cloud that are accessible via the industry-standard Server Message Block (SMB) and Network File System (NFS) protocols.

Key Concepts:

• Shared Access: Azure file shares can be mounted concurrently by cloud or on-premises deployments of Windows, Linux, and macOS.
• Fully Managed: You don't need to manage a file server VM or its operating system.

Visual: Azure Files vs. Blob Storage

⚠️ Exam Trap: Confusing Azure Files with Blob Storage is heavily tested. The key differentiator is protocol:

• If scenario mentions SMB, file share, or legacy application using file paths → Azure Files
• If scenario mentions images for website, data lake, or HTTP access → Blob Storage