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Arbitration Mechanism
If links between two HyperMetro storage systems are disconnected or either storage system breaks down, real-time data synchronization will be unavailable to the storage systems and only one storage system of the HyperMetro relationship can continue providing services. To ensure data consistency, HyperMetro uses the arbitration mechanism to determine which storage system continues providing services.
HyperMetro supports arbitration by pair or consistency group.
HyperMetro provides two arbitration modes:
- Static priority mode
Applies when no quorum server is deployed.
- Quorum server mode (recommended)
Applies when quorum servers are deployed.