Why it matters

Data movement costs money. Understanding shapes architecture.

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The architecture

Cross-region: managed services.

Cross-cloud: transfer services + direct connect.

Data movement optionsWithin cloudcross-regionCross-cloudTransfer ServiceSnowmobile/etcphysical for hugeEgress fees can dominate; consider carefully
Data movement mechanics.
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How it works end to end

AWS DataSync, Storage Transfer Service (GCP).

Snowmobile: physical transfer for exabytes.

Direct Connect: private high-bandwidth.

Delta transfer: only changes.