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Storage gateway

A storage gateway is a service that connects an on-premises software appliance with cloud-based storage to provide seamless and secure integration between an organization's on-premises IT environment and Amazon Web Services (AWS) storage infrastructure. The storage gateway acts as a bridge, enabling data to be transferred between the on-premises appliance and the cloud, while also providing data security and data durability.

There are four types of storage gateways:

1. File Gateway: A file gateway provides file-based storage integration with AWS. It enables users to store and retrieve files using standard file protocols and interfaces, such as Network File System (NFS) and Server Message Block (SMB).

2. Volume Gateway: A volume gateway provides block-based storage integration with AWS. It enables users to create virtual disks (volumes) and attach them to their on-premises servers as iSCSI devices. The data stored on these volumes is automatically transferred to and from the cloud, providing a secure, off-site backup.

3. Tape Gateway: A tape gateway enables users to store data on virtual tapes in the cloud, providing an additional layer of data protection and off-site backup. The tape gateway integrates with popular tape backup software, such as Symantec NetBackup and Veeam Backup & Replication.

4. Cached Volumes Gateway: A cached volumes gateway provides low-latency access to frequently accessed data, while storing all data in the cloud. It uses a cache on the on-premises appliance to store frequently accessed data, while all other data is stored in the cloud. This allows users to access their data quickly, while still benefiting from the durability and scalability of cloud storage.

Overall, storage gateways provide a convenient and secure way for organizations to integrate their on-premises storage infrastructure with the cloud, enabling them to take advantage of the benefits of both environments.


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