S3 to FSx for OpenZFS - Complete Automated Transfer Guide

Automate file transfer from Amazon S3 to FSx for OpenZFS so that every file uploaded to a specific S3 path automatically appears on FSx - no manual commands needed after setup.

What You Will Learn

• What dummy values are used throughout this guide and where to replace them
• Why EventBridge + DataSync is the best approach for FSx OpenZFS
• How to compare all available solutions so you can make an informed choice
• How to set up the full pipeline using Terraform (infrastructure as code)
• How to verify the setup using AWS Console and CLI
• How to test that a file uploaded to S3 automatically lands on FSx

Why This Matters

In real DevOps and data engineering workflows, teams store raw files in S3 (cheap, durable, scalable) but applications and compute clusters need those files on a fast, POSIX-compliant file system like FSx for OpenZFS. Manually copying files every time is error-prone and does not scale. This guide eliminates that manual step entirely using a fully automated, event-driven AWS-native pipeline.