What is two node rac with two node Dataguard

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Two node RAC with two node DataGuard is a high availability solution for Oracle databases.

Two node RAC provides high availability by allowing multiple instances to access a single database simultaneously.
Two node DataGuard provides disaster recovery by maintaining a standby database that can take over in case of a primary database failure.
Combining the two creates a highly available and disaster-resistant solution for Oracle databases.
In this setup, each node in the RAC has a corresponding standby node in the DataGuard configuration.
If a primary node fails, the corresponding standby node takes over and the RAC continues to operate with the remaining node.
This setup requires careful planning and configuration to ensure proper failover and recovery.
It also requires additional hardware and licensing costs.
This solution is commonly used in enterprise-level environments where high availability and disaster recovery are critical.