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.

AWS Bites is brought to you in association with fourTheorem. If you need a friendly partner to support you and work with you to de-risk any AWS migration or development project, check them out at ⁠⁠⁠fourtheorem.com⁠⁠⁠

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?

Episode 24 - Adam Lamb - CEO of SizeSlim Supplements