AWS volume gateway provides cloud-backed storage volumes that you can mount as Internet Small Computer System Interface (iSCSI) devices from your on-premises application servers. You can use the service for backup and archiving, disaster recovery, storage tiering, and migration. The service helps you reduce and simplify your datacenter and branch or remote office storage infrastructure.
Your applications connect to the service through a virtual machine or hardware gateway appliance using standard storage protocols, such as NFS, SMB and iSCSI. The gateway connects to AWS storage services, such as Amazon S3, Amazon S3 Glacier, Amazon S3 Glacier Deep Archive, Amazon EBS, and AWS Backup, providing storage for files, volumes, snapshots, and virtual tapes in AWS.
The gateway supports the following volume configurations:
- Cached volumes – You store your data in Amazon S3 and retain a copy of frequently accessed data subsets locally.
- Stored volumes – If you need low-latency access to your entire dataset, first configure your on-premises gateway to store all your data locally. Then asynchronously back up point-in-time snapshots of this data to Amazon S3.