title: AWS DataSync vs. AWS Transfer Family
body: <p>I read the documentation from the official website. but it does not give me a clear picture.</p>
  <p>Why would need to use AWS Transfer Family since AWS DataSync can also achieve the same result?</p>
  <p>I notice the protocol differences, but am not quite sure about the data migration use case.</p>
  <p>Why would we pick one over the other?</p>