Volume Gateway.

 

A Volume Gateway is one of the configurations of AWS Storage Gateway, a hybrid cloud storage service that enables twtech on-premises applications to use AWS cloud storage.

 The Volume Gateway presents cloud-backed iSCSI block storage volumes to twtech on-premises applications, and it stores data in Amazon S3 while optionally keeping a local cache for low-latency access.

Key Features of Volume Gateway:

There are two main modes:

1. Cached Volumes

• Primary data is stored in Amazon S3, and only frequently accessed data is cached locally.
• Benefits:
• Reduces on-premises storage footprint.
• Good for backup and disaster recovery.
• Use case: Applications needing large amounts of data with infrequent local access.

2. Stored Volumes

• Primary data is stored locally, and asynchronous backups are stored in Amazon S3.
• Benefits:
• Low-latency access to the entire dataset.
• AWS provides durable backups.
• Use case: Applications requiring low-latency access to the full data set and cloud backup.

Additional Benefits:

• Supports point-in-time backups via EBS Snapshots.
• Integrated with AWS Backup.
• Data is stored durably and redundantly in AWS.
• Useful for disaster recovery, cloud backup, and hybrid cloud storage solutions.

Typical Use Cases:

• Backup and restore with EBS Snapshots. 
• Disaster recovery (DR)
• Storage tiering
• Moving (migrating) applications to the cloud.