A company is running an application on premises and wants to use AWS for data backup All of the data must be available locally. The backup application can write only to block-based storage that is compatible with the Portable Operating System Interface (POSIX)
Which backup solution will meet these requirements?
A . Configure the backup software to use Amazon S3 as the target for the data backups
B . Configure the backup software to use Amazon S3 Glacier as the target for the data backups
C . Use AWS Storage Gateway, and configure it to use gateway-cached volumes
D . Use AWS Storage Gateway, and configure it to use gateway-stored volumes
Answer: D
Explanation:
AWS Storage Gateway provides a hybrid cloud storage service that enables on-premises applications to seamlessly use AWS cloud storage. The gateway-stored volumes configuration is suitable for scenarios where all data must be available locally and the backup application can write only to block-based storage that is POSIX-compliant.
Deploy AWS Storage Gateway:
Launch the AWS Storage Gateway service from the AWS Management Console. Download and deploy the Storage Gateway VM on your on-premises infrastructure.
Activate the Gateway:
Activate the Storage Gateway by connecting it to your AWS account. Follow the setup wizard to complete the activation process. Configure Gateway-Stored Volumes:
Create a gateway-stored volume where the primary data is stored locally, and an asynchronous copy is stored in AWS.
Specify the size of the volume and configure it to match your backup application’s requirements.
Connect the Backup Application:
Present the created volume to your on-premises backup application as an iSCSI target.
Configure the backup application to write data to the iSCSI target provided by the Storage Gateway.
Monitor and Manage:
Use the AWS Management Console to monitor the gateway and the volumes.
Ensure that the data is being backed up to AWS correctly and that local copies are maintained as required.
Reference: AWS Storage Gateway User Guide
Gateway-Stored Volumes
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