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SDRS Introduction

Storage Disaster Recovery Service (SDRS) provides disaster recovery (DR) services for many public cloud services, such as Elastic Cloud Server (ECS), Dedicated Distributed Storage Service (DSS), and Elastic Volume Service (EVS). SDRS uses multiple technologies, such as storage replication, data redundancy, and cache acceleration, to provide high data reliability and service continuity for users.

SDRS protects service applications by replicating server data and specifications in a target AZ. It allows service applications to start in the target AZ in the event that servers in the source AZ stop. This improves service availability and continuity.

Figure 1 Storage DR