The Active-Active DC Solution means that both DCs run concurrently to share service loads
and to improve the overall service capability and resource usage. Currently, DCs can work in either active-passive mode or active-active mode.
In active-passive mode, some services run on DC A, with DC B as the hot backup, while
other services run on DC B, with DC A as the hot backup. This achieves approximate
active-active effects.
In active-active mode, all I/O paths are allowed access to an active-active LUN, service
loads are balanced, and seamless failover can be performed. Huawei Active-Active DC Solution employs an active-active architecture. Based on the industry-leading HyperMetro function of OceanStor Dorado V3 storage systems, the solution can work with web, database clusters, load balancing components, transmission devices,
networks, and other components to deliver active-active capabilities for DCs deployed within
100 km. The solution ensures automatic failover with zero service awareness in case of device
failures or even single-DC failures. In addition, it boasts zero recovery point objective (RPO)
and zero recovery time objective (RTO). (RTO depends on the application system and the
deployment mode).
HyperMetro provides the following benefits:
High availability with geographic protection both datacenters are Active and Active
Easy management
Minimal risk of data loss, reduced system downtime, and quick disaster recovery
Negligible disruption to users and client applications
Load Banlancing between Datacenters Hardware on DR site is also used for proccesing
