You are responsible for performing a migration from your company`s on-premise data to the AWS cloud. You have about 400 GB of data stored in an NFS. One requirement of this migration is to transfer some of this data to AWS EFS and the other part to S3. Which is the easiest to use and with the most cost-effective solution?

Answer options:

A.Use AWS Storage gateway.
B.Use S3 Transfer Acceleration.
C.Use AWS DataSync.
D.Use AWS Database Migration Service.

Answer: C
Option A is incorrect. Storage Gateway is a hybrid cloud storage service to share and access data between your on-premise resources and AWS resources. It is not mainly designed to migrate data from On-Premise to AWS. Additionally, all three storage gateway patterns are backed by S3, not EFS. More details: https://aws.amazon.com/storagegateway/faqs/.
Option B is incorrect. S3 Transfer Acceleration is used to transfer data to S3 using Amazon CloudFront’s globally distributed edge locations, increasing data transfer speed. However, this option doesn`t work to transfer data to AWS EFS. More details: https://docs.aws.amazon.com/AmazonS3/latest/dev/transfer-acceleration.html.
Option C is CORRECT. DataSync is a service used to transfer data between on-premise storage to AWS S3, EFS and FSx. It is cost-effective, easy to use, and can handle the transfer to EFS and S3. More details: https://aws.amazon.com/datasync/faqs/.
Option D is incorrect because AWS Database Migration Service is used to migrate databases to AWS databases like Aurora, DynamoDB, etc. In this scenario, we don’t mention a database migration, and with this service, you can not transfer data to EFS nor S3. More details: https://aws.amazon.com/dms/.