What is the MOST operationally efficient way to replicate the images?
Configure a periodic process to run the aws s3 sync command from the on-premises file system to Amazon S3. Configure an AWS Lambda function to process event notifications from Amazon S3 and copy the images from Amazon S3 to the EFS file system.
Deploy an AWS Storage Gateway file gateway with an NFS mount point. Mount the file gateway file system on the on-premises server. Configure a process to periodically copy the images to the mount point.
Deploy an AWS DataSync agent to an on-premises server that has access to the NFS file system. Send data over the Direct Connect connection to an S3 bucket by using public VIF. Configure an AWS Lambda function to process event notifications from Amazon S3 and copy the images from Amazon S3 to the EFS file system.
Deploy an AWS DataSync agent to an on-premises server that has access to the NFS file system. Send data over the Direct Connect connection to an AWS PrivateLink interface VPC endpoint for Amazon EFS by using a private VIF. Configure a DataSync scheduled task to send the images to the EFS file system every 24 hours.
Explanations:
This option involves multiple steps, including syncing to S3 and then using Lambda to move the files to EFS. It introduces additional complexity and latency since images first go to S3, which may not be as efficient for real-time needs.
While using an AWS Storage Gateway could facilitate replication, it requires manual processes to move data to the EFS, which may not be as automated or efficient as other options. Additionally, it doesn’t leverage the Direct Connect connection directly for EFS.
Although this method uses DataSync, it first transfers data to S3 and then requires Lambda to move it to EFS, adding unnecessary complexity and delay in the replication process.
This option directly utilizes AWS DataSync to replicate data from the on-premises NFS file system to EFS over the Direct Connect connection. It provides a scheduled, automated, and efficient transfer process without the need for intermediary storage like S3.