The backup gateway functions as a gateway between a data source and the Metallic cloud backup service. The backup gateway resides adjacent to the data source to provide low latency and high performance.
Metallic backup gateways perform the roles of both an access node and a backup gateway:
Access nodes enable Metallic to connect with, discover, back up, and restore your data source that the Metallic control panel cannot access directly by the Metallic control plane.
Backup gateways move data to and from the access nodes to the storage targets. Backup gateways also perform deduplication operations before moving data to storage targets.
The following cases require a backup gateway:
You want to protect on-premises applications
In addition to a cloud copy of the backup data, you need a local copy
The outbound network security is restricted or blocked from a data source
You want to protect cloud resources in Amazon Web Services (AWS)
For more information about preparing a Metallic backup gateway for AWS, see System Requirements for an AWS Deployment of a Metallic Backup Gateway and Getting Started with Amazon EC2.
You want to protect cloud resources in Oracle Cloud Infrastructure (OCI)
For more information about preparing a Metallic backup gateway for OCI, see System Requirements for OCI Deployment of a Metallic Backup Gateway and Complete the Guided Setup for OCI.