Help Center/ Data Replication Service/ FAQs/ Product Consulting/ What Are the Differences Between Primary/Standby and Single-Node Instances for DRS Synchronization Tasks?

Updated on 2023-07-03 GMT+08:00

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What Are the Differences Between Primary/Standby and Single-Node Instances for DRS Synchronization Tasks?

You can set Instance Type to Primary/Standby or Single when creating a DRS real-time synchronization task.

Primary/Standby: After the synchronization task is created, DRS creates two subtasks, each running on the primary and standby nodes. If the subtask on the primary node fails, DRS automatically starts the subtask on the standby node to continue the synchronization.

Single: The synchronization task will be created on only one node, which is cost-effective.

This option is available only in specific scenarios. For details, see Performing a Primary/Standby Switchover.

Figure 1 Synchronization instance details

Parent topic: Product Consulting

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