Adding Nodes

Scenarios

This section describes how to add nodes to an instance to suit your service requirements.

Precautions

• Adding nodes may lead to the decrease of OPS. Perform this operation during off-peak hours.
• You can only add nodes when the instance status is Available or Checking restoration.
• An instance cannot be deleted when one or more nodes are being added.

Method 1

1. In the service list, choose Databases > GeminiDB.
2. On the Instances page, locate the instance that you want to add nodes to and click its name.
3. In the Node Information area on the Basic Information page, click Add Node.
   Figure 1 Basic information
   

4. Specify Add Nodes and click Next.
   Figure 2 Specifying the number of nodes
   

   New nodes are of the same specifications as existing nodes. Once a new node is added, its specifications cannot be changed.

5. On the displayed page, confirm the node configuration details.
   • For yearly/monthly instances
     • If you need to modify your settings, click Previous.
     • If you do not need to modify your settings, click Next and complete the payment.
   • For pay-per-use instances
     • If you need to modify your settings, click Previous.
     • If you do not need to modify your settings, click Submit.

6. View the result of adding nodes.
   • When new nodes are being added, the instance status is Adding node.
   • After the nodes are added, the DB instance status becomes Available.
   • Click the instance name. In the Node Information area on the Basic Information page, view the information about the new nodes.

Method 2

1. Log in to the management console.
2. In the service list, choose Databases > GeminiDB.
3. On the Instances page, locate the instance you want to add nodes for and choose More > Add Node in the Operation column.
   Figure 3 Adding nodes
   

4. Specify Add Nodes and click Next.
   Figure 4 Specifying the number of nodes
   

   New nodes are of the same specifications as existing nodes. Once a new node is added, its specifications cannot be changed.

5. View the result of adding nodes.
   • When new nodes are being added, the instance status is Adding node.
   • After the nodes are added, the DB instance status becomes Available.
   • Click the instance name. In the Node Information area on the Basic Information page, view the information about the new nodes.