We discuss common use cases and challenges for copying data between S3 buckets and S3-compatible object storage services. We share our experience building an open source Node.js CLI tool called S3-Migrate to efficiently migrate data with separate source and destination credentials. We cover performance considerations like streaming, chunk sizes, concurrency and parallelism.

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In this episode, we mentioned the following resources:

• s3-migrate CLI tool: https://github.com/lmammino/s3-migrate
• DigitalOcean Spaces Object Storage: https://docs.digitalocean.com/products/spaces/
• Cloudflare R2: https://www.cloudflare.com/en-gb/developer-platform/products/r2/
• Backblaze B2: https://www.backblaze.com/cloud-storage
• Wasabi Cloud Storage: https://wasabi.com/
• Linode / Akamai Object Storage: https://www.linode.com/products/object-storage/
• MinIO (Self-hosted S3-compatible storage): https://min.io/
• Basecamp / Hey’s move away from S3: https://world.hey.com/dhh/it-s-five-grand-a-day-to-miss-our-s3-exit-b8293563
• AWS re:Post - How to move objects between S3 buckets: https://repost.aws/knowledge-center/move-objects-s3-bucket
• AWS Labs - Utility for S3 Migration: https://github.com/awslabs/utility-for-s3-migration
• s3s3mirror (Java-based tool): https://github.com/cobbzilla/s3s3mirror
• rclone S3 Support: https://rclone.org/s3/
• knox-copy (Ruby-based, deprecated): https://github.com/goodeggs/knox-copy
• Flexify.io (paid cloud migration service): https://flexify.io/

Do you have any AWS questions you would like us to address?

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