What is EFS?

• Managed NFS (Network File System)
• Allows multiple EC2 Instances across Availability Zones to access the same shared storage
• Highly availabile and scalable
• Pay-per-use model (no need to provision capacity)

Use Cases

• Content management
• Web serving
• Data sharing
• WordPress

Key Features

• Linux compatible (not Windows)
• Encryption at rest (using KMS)
• POSIX compliant
• Automatic scaling

Performance Modes

• General Purpose (default): For latency-sensitive workloads
• Max I/O: For high throughput, parallel workloads (like big data applications)

Throughput Modes