Help Center/ GeminiDB/ GeminiDB Cassandra API/ Working with GeminiDB Cassandra API/ Intra-region DR/ Redundancy Switchover Configuration
Updated on 2024-10-08 GMT+08:00
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Redundancy Switchover Configuration

The GeminiDB Cassandra supports redundancy switchover configuration. You can configure DR switchover for an instance as required. If a natural disaster occurs on the primary DB instance and the node fault of the primary DB instance reaches the DR switchover threshold, the DR instance is switched to the primary DB instance. After the database link address is changed on the application side, service access of the application can be quickly restored.

Prerequisites

A primary DB instance and a DR instance have been created.

Procedure

  1. Log in to the GeminiDB console.
  2. In the service list, choose Databases > GeminiDB Cassandra API.
  3. On the Instance Management page, locate the target primary DB instance and choose More > DR Switchover Configuration in the Operation column.
  4. In the DR Switchover Configuration area, select the percentage of faulty nodes for instance DR switchover and click to confirm the. You can select 50, 60, 70, 80, 90, or 100.

    Figure 1 Redundancy Switchover Configuration

Parent topic: Intra-region DR