Which backup strategy should the solutions architect recommend to meet these requirements?
Create a pipeline in AWS Data Pipeline. Copy the data to an EFS file system in the secondary Region. Create a lifecycle policy to move files to the EFS One Zone-Infrequent Access storage class.
Set up automatic backups by using AWS Backup. Create a copy rule to copy backups to an Amazon S3 bucket in the secondary Region. Create a lifecycle policy to move backups to the S3 Glacier storage class.
Set up AWS DataSync and continuously copy the files to an Amazon S3 bucket in the secondary Region. Create a lifecycle policy to move files to the S3 Glacier Deep Archive storage class.
Turn on EFS Cross-Region Replication and set the secondary Region as the target. Create a lifecycle policy to move files to the EFS Infrequent Access storage class in the secondary Region.
Explanations:
AWS Data Pipeline is not specifically designed for continuous data replication and does not provide built-in cross-region capabilities for EFS. Additionally, EFS One Zone-IA may not meet the requirement for immediate access in the event of a performance issue in the primary region.
While AWS Backup can automate backups and copy them to S3 in a secondary region, moving backups to S3 Glacier storage class may violate the RTO of 1 hour, as restoring from Glacier can take several hours.
AWS DataSync is designed for transferring data but does not provide real-time replication and moving files to S3 Glacier Deep Archive would not meet the RTO requirement due to potential long retrieval times.
EFS Cross-Region Replication allows for near real-time replication of files between regions, ensuring data is available quickly if needed. Utilizing the EFS Infrequent Access storage class can help reduce costs while still meeting the RTO requirement of 1 hour.
I structure that the answer is:
Turn on EFS Cross-Region Replication and set the secondary Region as the target. Create a lifecycle policy to move files to the EFS Infrequent Access storage class in the secondary Region.