Introduction to the application of OceanStor ReplicationDirector in the disaster recovery data center solution (geo-redundant mode)

If the production center fails, the disaster recovery data center solution (geo-redundant mode) uses the remote disaster recovery center to recover services, ensuring business continuity.
1. One piece of OceanStor ReplicationDirector is deployed at both the local disaster recovery center and remote disaster recovery center in order to centrally manage the local production center, local disaster recovery center, and remote disaster recovery center.
2. Replication relationships are established between the storage systems used by host services to achieve both local disaster recovery and remote disaster recovery. Currently, the solution employs parallel replication (synchronous+asynchronous) and cascaded replication (synchronous+asynchronous). This solution can use storage snapshots of protected objects to roll back data, preventing data loss and virus attacks.
3. If the local production site fails, OceanStor ReplicationDirector allows the local disaster recovery site to take over its services. If both the local production site and the local disaster recovery site fail, the data backed up to the remote disaster recovery site can be used to quickly recover services.
4. The solution supports the following disaster recovery technologies: cascaded connection in synchronous + asynchronous mode for replication, parallel connection in synchronous + asynchronous mode for replication, cascaded connection in asynchronous + asynchronous mode for replication, parallel connection in asynchronous + asynchronous mode for replication, and active-active (VIS) + asynchronous replication (array).

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