FSx for Lustre's S3 Data Repository Integration

~8 min read

How Lustre treats an S3 bucket as its backing data repository, and what lazy loading means in practice.

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Key points

  • Data repository association links a Lustre file system to an S3 bucket as its backing store
  • Lazy loading means data streams in from S3 on first read, not via a slow full upfront copy
  • The full S3 namespace is browsable immediately, even before objects are physically loaded
  • Optional export-back-to-S3 lets job output/checkpoints land in durable storage with no extra upload code