AWS DataSync

Accelerated, automated online data transfer between supported on-premises and AWS storage locations and among AWS storage services.

Key points

DataSync handles transfer scheduling, encryption, verification, and movement optimization.
Throughput is still bounded by source, network, agent, and destination behavior.
It moves datasets; it does not remain as an on-premises file/volume interface after migration.

Best-known use cases

Migrate file data online to S3, EFS, or FSx.
Replicate or move datasets among supported AWS storage services.

What candidates often confuse it with

DataSync moves data; Storage Gateway provides ongoing hybrid storage access.
DataSync is AWS storage movement; Transfer Family exposes managed file-transfer protocols to clients.

Key takeaway

Choose DataSync for managed online storage transfer when the network can meet the migration window.

Related services

AWS Storage Gateway
AWS Transfer Family
AWS Snow Family
Amazon S3

Relevant exam tasks

D3.1
D3.5
D4.1

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AWS DataSync

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SAA-C03 at a glance

Category: Associate
Duration: 130 minutes
Questions: 65 total; 50 scored and 15 unidentified unscored
Formats: Multiple choice and multiple response
Scoring: 100–1,000 scaled score; 720 minimum passing score

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