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ApsaraDB RDS:View the details of a disaster recovery instance group

Last Updated:Oct 28, 2025

After you create a disaster recovery instance, you can view the basic information, topology, and configuration list of the instance group on its details page.

Prerequisites

A disaster recovery instance is created.

Page overview

Go to the Global Distributed Cache page. In the instance group list, click the ID of the instance group that you want to view. On the instance group details page, you can view its basic information, topology, and configuration list.

View basic information about the instance group

The basic information for the instance group includes the Instance Group ID, Name, Type, Database Type, Creation Time, Running Status, and Region.

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View the instance group topology

The topology graph shows the links between the primary and disaster recovery instances, including the link status, instance status, and basic information.

Click the instance ID of a role to go to the RDS instance details page and view the details of the primary or disaster recovery instance.

View the instance group configuration list

The instance group configuration list is divided into the RDS Instance List and the DTS Instance List. The details are as follows:

RDS Instance List

The RDS Instance List shows all instances in the instance group and their corresponding Running Status, Region/Zone, Role, and Creation Time. You can view and manage the instances of each role in this list.

DTS Instance List

The DTS Instance List shows the data synchronization direction from the primary instance to the disaster recovery instance, along with the Region, Running Status, and Creation Time.

When you promote a role to a primary instance, the DTS synchronization link attached to that role is automatically released. No manual operation is required.

View replication performance

Specify a custom time range to view the following performance metrics:

  • dag_lag_seconds: Replication latency

  • dag_unhealthy_db_count: Number of unhealthy databases in replication

  • dag_log_send_queue_size_kb: Size of the log sending queue

  • dag_log_send_rate_kb_per_sec: Rate of sending logs

  • dag_log_redo_queue_size_kb: Size of the log application queue

  • dag_log_redo_rate_kb_per_sec: Rate of applying logs