A company’s on-premises volume backup solution is at end of life. The company wants to adopt AWS for backups but keep local access to all data while it is backed up on AWS. The data backed up on AWS must be transferred automatically and securely. Which solution meets these requirements?

The correct answer is to use AWS Storage Gateway with a stored volume gateway. This configuration allows you to store all primary data locally on your on-premises storage while asynchronously backing up point-in-time snapshots to Amazon S3. This meets the requirement of keeping local access to all data while it is backed up on AWS, and the data is transferred automatically and securely. Using AWS Snowball or Snowball Edge is primarily for large-scale data migration, not continuous backup with local access. Snowball Edge's file interface allows local access, but it's not designed for ongoing, automatic backups of changing data. A cached volume gateway stores frequently accessed data locally and the full dataset in S3, which doesn't guarantee local access to all data at all times, only a cached subset.