# EFS

### **Amazon EFS (Elastic File System)**

* Think of it like a **shared network drive** that **many EC2s can access at the same time**.
* It automatically grows/shrinks as you add/remove files (no need to set size).
* Good for **shared storage, web apps, content management, big data, home directories**.

👉 Example: If you have 10 EC2 servers running a website and they all need to read/write the same images or logs, they can all connect to **EFS** at once

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### **AWS Backup**

EFS uses NFS protocol

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