AWS Certified Solutions Architect - Professional
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A company is migrating an application to the AWS Cloud. The application runs in an on-premises data center and writes thousands of images into a mounted NFS file system each night. After the company migrates the application, the company will host the application on an Amazon EC2 instance with a mounted Amazon Elastic File System (Amazon EFS)file system. The company has established an AWS Direct Connect connection to AWS. Before the migration cut over, a solutions architect must build a process that will replicate the newly created on-premises images to the EFS file system. What is the MOST operationally efficient way to replicate the images?
A company is migrating an application to the AWS Cloud. The application runs in an on-premises data center and writes thousands of images into a mounted NFS file system each night. After the company migrates the application, the company will host the application on an Amazon EC2 instance with a mounted Amazon Elastic File System (Amazon EFS)file system. The company has established an AWS Direct Connect connection to AWS. Before the migration cut over, a solutions architect must build a process that will replicate the newly created on-premises images to the EFS file system. What is the MOST operationally efficient way to replicate the images?
Explanation:
Option D is the correct answer because it uses AWS DataSync, which is specifically designed for efficient, automated, and secure data transfers. Here is an explanation for why Option D is optimal:
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AWS DataSync Efficiency: AWS DataSync is a managed service that simplifies, automates, and accelerates moving data between on-premises storage and AWS storage services. It is highly efficient in transferring large volumes of data, which is ideal for the company's need to replicate thousands of images nightly.
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Operational Automation: A DataSync scheduled task can be set up to run at specified intervals (in this case, every 24 hours), ensuring that the process is operationally efficient and does not require manual intervention. This automation reduces operational overhead.
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Secure Data Transfer Using Direct Connect: Using AWS Direct Connect, which provides a dedicated network connection, ensures low-latency, high-bandwidth, and secure data transfer between the on-premises environment and AWS. This Direct Connect link minimizes the potential for network bottlenecks and reduces data transfer times.
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Private VIF and AWS PrivateLink: The use of an interface VPC endpoint for Amazon EFS (provided by AWS PrivateLink) ensures that data transfer occurs over a private network connection directly to EFS, enhancing security by avoiding the public internet.
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Consistency and Reliability: By ensuring that the DataSync agent on the on-premises server has direct access to the NFS file system, it guarantees that all images can be efficiently and reliably copied to Amazon EFS with minimal risk of data loss or inconsistency.
Overall, Option D provides a comprehensive and efficient solution leveraging AWS DataSync and Direct Connect with PrivateLink to securely and reliably replicate the on-premises images to Amazon EFS, aligning perfectly with the requirements and ensuring operational efficiency.