AWS Certified Solutions Architect – Professional SAP-C01 – Question029

You're running an application on-premises due to its dependency on non-x86 hardware and want to use AWS for data backup. Your backup application is only able to write to POSIX-compatible block-based storage. You have 140TB of data and would like to mount it as a single folder on your file server. Users must be able to access portions of this data while the backups are taking place.
What backup solution would be most appropriate for this use case?

A. Use Storage Gateway and configure it to use Gateway Cached volumes.
B. Configure your backup software to use S3 as the target for your data backups.
C. Configure your backup software to use Glacier as the target for your data backups.
D. Use Storage Gateway and configure it to use Gateway Stored volumes.

Correct Answer: D

Explanation:

Explanation: Volume gateway provides an iSCSI target, which enables you to create volumes and mount them as iSCSI devices from your on-premises application servers. The volume gateway runs in either a cached or stored mode.
In the cached mode, your primary data is written to S3, while you retain some portion of it locally in a cache for frequently accessed data. In the stored mode, your primary data is stored locally and your entire dataset is available for low-latency access while asynchronously backed up to AWS. In either mode, you can take point-in-time snapshots of your volumes and store them in Amazon S3, enabling you to make space-efficient versioned copies of your volumes for data protection and various data reuse needs.