Updated on 2023-11-07 GMT+08:00

SDRS Application Scenarios

Asynchronous Replication (Under Restricted OBT)

Asynchronous replication continuously replicates servers at local IDCs to Huawei Cloud with RPO in a few seconds. By leveraging asynchronous replication techniques at the host layer, it allows for cross-AZ disaster recovery and keeps crash consistency for your data. If production site services fail to recover within a short period of time due to force majeure (fire and earthquake) or device faults (software and hardware damage), you can quickly recover services at the disaster recovery site with some simple configurations.
Figure 1 Asynchronous replication

Synchronous Replication

Synchronous replication replicates servers from one AZ to another in real time with zero RPO. By leveraging synchronous replication techniques at the storage layer, it allows for cross-AZ disaster recovery and keeps crash consistency for your data. If production site services fail to recover within a short period of time due to force majeure (fire and earthquake) or device faults (software and hardware damage), you can quickly recover services at the disaster recovery site with some simple configurations.

SDRS is suitable for stateful applications, such as Microsoft Office 365, that requires the storage of user data on the particular server running this application.

Figure 2 Synchronous replication

Disaster Recovery Drill

Disaster recovery drills are used to simulate fault scenarios, formulate recovery plans, and verify whether the plans are applicable and effective. Services are not affected during disaster recovery drills. When a fault occurs, you can use the plans to quickly recover services, thus improving service continuity.

Server Migration

With server replication capabilities, SDRS allows you to migrate on-premises servers to the cloud, or cloud servers from one AZ or region to another.