Amazon EFS

What This Service Solves

Elastic shared file storage for Linux workloads across multiple compute resources.

• Use Amazon EFS when the scenario requirement matches its managed service category and reduces custom operational work.

When You Should Not Use It

• Do not choose Amazon EFS only because it is familiar. Confirm it matches the workload model, security boundary, availability target, and cost pattern.

What AWS Manages and What You Manage

Customer controls file permissions, network access, access points, and encryption settings.

Security Implications

Use mount targets in required AZs, security groups, access points, encryption, and lifecycle policies.

Availability and Scaling

Review whether the service is regional, zonal, global, or dependent on resources you configure.

Understand service quotas, scaling mode, and downstream bottlenecks before assuming automatic scale solves the problem.

Cost Behavior

Cost depends on usage dimensions such as requests, duration, capacity, storage, data transfer, and optional features.

Common Integrations

• Storage

How AWS Might Present It

Certification-Specific Depth

Related Comparisons

Sources and Review Metadata

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