Virtual private clouds (VPCs) are deployed in regions while vSwitches are deployed in zones. You can deploy VPCs in different regions and vSwitches in different zones to implement cross-region and cross-zone backup and disaster recovery.
Backup and disaster recovery
The global infrastructure of Alibaba Cloud is deployed in Alibaba Cloud regions and zones. Each Alibaba Cloud region consists of multiple physically independent and isolated zones. These zones are connected to each other through low-latency, high-throughput, and highly redundant networks. You can deploy applications and databases in zones to automatically perform failover across zones. Compared with a single data center or multiple data centers, zones support higher availability, fault tolerance, and scalability.
For more information about regions and zones, see Regions and zones.