Storage

Amazon EFS

Amazon EFS provides elastic shared NFS file systems for Linux workloads across Availability Zones in a Region. Multiple inference or processing tasks can read common model artifacts without copying them into every container image.

Key points

Regional file systems provide multi-AZ availability while One Zone lowers cost with narrower resilience
Performance and throughput modes address different access patterns
Access points enforce application-specific roots and POSIX identities

When to use it

Share model weights among an autoscaled inference fleet
Mount a common document-processing workspace from ECS tasks

Exam tips

Choose EFS for shared files, EBS for block storage, and S3 for object-scale durable artifacts
Measure model startup reads and provision throughput when burst credits would miss latency targets

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