What should a solutions architect do to meet these requirements?
Set up an AWS DataSync agent to replicate the prefixed data from the source S3 bucket to the destination S3 bucket. Select to use all available bandwidth on the task, and monitor the task to ensure that it is in the TRANSFERRING status. Create an Amazon EventBridge (Amazon CloudWatch Events) rule to trigger an alert if this status changes.
In the second account, create another S3 bucket to receive data from the radar station with the most accurate data. Set up a new replication rule for this new S3 bucket to separate the replication from the other radar stations. Monitor the maximum replication time to the destination. Create an Amazon EventBridge (Amazon CloudWatch Events) rule to trigger an alert when the time exceeds the desired threshold.
Enable Amazon S3 Transfer Acceleration on the source S3 bucket, and configure the radar station with the most accurate data to use the new endpoint. Monitor the S3 destination bucket’s TotalRequestLatency metric. Create an Amazon EventBridge (Amazon CloudWatch Events) rule to trigger an alert if this status changes.
Create a new S3 replication rule on the source S3 bucket that filters for the keys that use the prefix of the radar station with the most accurate data. Enable S3 Replication Time Control (S3 RTC). Monitor the maximum replication time to the destination. Create an Amazon EventBridge (Amazon CloudWatch Events) rule to trigger an alert when the time exceeds the desired threshold.
Explanations:
While using AWS DataSync can effectively copy data, it does not inherently provide the real-time replication monitoring needed for time-critical data. Monitoring the task status alone does not guarantee that the data is replicated within the required 30 minutes after upload.
Creating a separate S3 bucket and a new replication rule for the specific radar station does allow for monitoring, but it adds unnecessary complexity and does not leverage S3 Replication Time Control (RTC) which provides guaranteed replication times. Also, it doesn’t specify a mechanism to monitor replication time effectively.
Enabling S3 Transfer Acceleration can improve upload speed, but it does not address the need for monitoring replication completion specifically for the radar station with the most accurate data. Additionally, monitoring the TotalRequestLatency metric does not provide the necessary insight into replication times.
Creating a new S3 replication rule that filters for the specific radar station’s prefix and enabling S3 Replication Time Control (RTC) ensures that the data is replicated within the required timeframe. Monitoring for maximum replication time using EventBridge effectively meets the compliance objective for timely data availability.
I rate that the answer is:
Create a new S3 replication rule on the source S3 bucket that filters for the keys that use the prefix of the radar station with the most accurate data. Enable S3 Replication Time Control (S3 RTC). Monitor the maximum replication time to the destination. Create an Amazon EventBridge (Amazon CloudWatch Events) rule to trigger an alert when the time exceeds the desired threshold.