SAA-C03 Question 355
Single answerA company is migrating an on-premises file storage system to AWS. They need to transfer petabytes of data securely and efficiently. Once the migration is complete, they want the ability to continue accessing the migrated data from their on-premises systems with low latency while maintaining centralized storage in AWS. Which solution best meets these requirements?
- A
Use AWS DataSync to migrate the data and AWS Storage Gateway File Gateway for on-premises access to the data in AWS.
- B
Use AWS Snowball Edge to transfer the data and migrate it to Amazon S3, then use AWS Direct Connect for on-premises access to the data.
- C
Use AWS DataSync to migrate the data and set up an Amazon FSx file system for on-premises access.
- D
Use AWS Snowball Edge to transfer the data, and then use AWS DataSync continuously to synchronize the on-premises storage with Amazon EFS.
Show answer and explanation
Correct answer: A
Explanation
The best solution involves using AWS DataSync to transfer the large dataset to AWS quickly and securely. For continuous access to the migrated data from on-premises systems with low latency, AWS Storage Gateway File Gateway is ideal as it provides a local cache for frequently accessed files while storing the data centrally in AWS.
- A. Correct.
This is the correct answer. AWS DataSync efficiently migrates large amounts of data to AWS, and Storage Gateway File Gateway allows on-premises systems to access data stored in AWS with low latency by caching frequently accessed files.
- B. Incorrect.
AWS Snowball Edge is a good choice for transferring large datasets to AWS, but AWS Direct Connect does not provide file-level access; it only provides a dedicated network connection. This doesn't meet the requirement for file-sharing access.
- C. Incorrect.
While AWS DataSync is suitable for migrating data, Amazon FSx is not designed for low-latency access from on-premises systems without additional networking setups, such as Direct Connect or VPNs, which are not mentioned here.
- D. Incorrect.
AWS Snowball Edge is useful for initial data transfer, but using AWS DataSync continuously to synchronize data between on-premises systems and Amazon EFS is not an efficient solution for low-latency access.