DataSync moves large amounts of file data between on-premises storage and AWS (or between AWS storage services) quickly and automatically, handling encryption, verification, and scheduling.

DataSync vs DMS vs Snowball

DataSync = online file/object transfer over the network, great for ongoing or large one-time file migrations to S3, EFS, or FSx. DMS = database migration. Snowball = physical device for huge transfers when the network is too slow. Scenario about moving file shares or NFS/SMB data to AWS over the network? DataSync.

Test yourself

Practice question

A company needs to move 50 TB of file-share data from on-premises NFS to Amazon S3 over its network connection, automatically and verified. Which service?

  1. AWS DMS
  2. AWS DataSync
  3. Amazon Kinesis
  4. AWS Glue
👉 Click to reveal the answer & explanation

Correct answer: B. DataSync is built for fast, automated, verified transfer of file data (NFS/SMB) to AWS storage like S3. DMS (A) migrates databases; Kinesis (C) is streaming; Glue (D) is ETL, not bulk file transfer.

Related topics

AWS DMS · Amazon S3 · Storage Gateway

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