SAA-C03 Question 413
Single answerA company has an on-premises file storage system used for application data and wants to migrate to AWS while maintaining low latency access for some of its on-premises applications. The company also requires seamless integration with its on-premises environment and the ability to transfer large datasets periodically to AWS for long-term archiving. Which solution best meets these requirements?
- A
Use AWS Storage Gateway in File Gateway mode to provide access to S3 storage and integrate with on-premises applications.
- B
Use AWS DataSync to continuously replicate data from the on-premises storage system to Amazon S3 and provide low latency access.
- C
Use Amazon S3 Transfer Acceleration to upload data to an S3 bucket for archiving, and configure applications to access the data directly from S3.
- D
Use AWS Storage Gateway in Tape Gateway mode to emulate a tape library for archiving and provide low latency access to on-premises applications.
Show answer and explanation
Correct answer: A
Explanation
The AWS Storage Gateway in File Gateway mode is the best solution for hybrid storage scenarios where on-premises applications require low latency access to files while utilizing Amazon S3 for scalable and durable storage. File Gateway caches frequently accessed data locally, ensuring high performance for on-premises applications, and seamlessly transfers data to AWS for long-term archiving. Other options, such as DataSync or Transfer Acceleration, are more suitable for data migration or upload optimization rather than hybrid storage with local application integration.
- A. Correct.
Correct: AWS Storage Gateway in File Gateway mode allows seamless integration between on-premises applications and AWS storage by caching frequently accessed data locally while storing the primary dataset in Amazon S3. This meets the requirements for low latency access and periodic archiving.
- B. Incorrect.
Incorrect: AWS DataSync is designed for high-speed, efficient data transfers to the cloud but does not provide low latency access to on-premises applications. It is suitable for one-time or recurring data migrations but not for hybrid storage with local access.
- C. Incorrect.
Incorrect: Amazon S3 Transfer Acceleration improves the upload speed of data to S3 but does not provide caching or low latency access to on-premises applications. It is more suitable for scenarios involving large-scale uploads from distributed locations.
- D. Incorrect.
Incorrect: AWS Storage Gateway in Tape Gateway mode emulates a virtual tape library for backing up data to AWS. It is optimized for backup and archiving workflows but does not provide low latency access to data for applications.