This section describes the characteristics, DR technologies, and principles of the active-passive DR solution.
Solution Introduction
This solution is applicable to local and remote DR. The production center and DR center work in active-passive mode. If a disaster occurs, the DR center quickly takes over services from the production center, ensuring optimal service continuity. The replication relationship is established between storage systems used by host services for remote DR. In addition, this solution can protect HyperVault snapshots of protected objects for rolling back data, preventing data loss and data corruption caused by viruses.
Array-Based Replication DR Principles
The array-based replication technology uses the remote replication function provided by the storage systems to replicate the service data from the production data center (DC) to a remote disaster recovery (DR) DC.
Host-Based Replication DR Principles
Host replication uses the host I/O replication function to duplicate the virtual machine (VM) data stored in the production data center to the remote disaster recovery (DR) center.