Can I Expand the Subnet for an Elasticsearch or OpenSearch Cluster?

If the current subnet of an existing Elasticsearch or OpenSearch cluster cannot meet your requirements, you can switch to another subnet.

1. Log in to the CSS management console.
2. In the navigation pane on the left, expand Clusters. Select a cluster type based on the target cluster. The cluster list is displayed.
3. In the cluster list, click the name of the target cluster. The cluster information page is displayed.
4. Click the Overview tab.
5. Click Change Subnet on the right of Current Subnet. In the displayed dialog box, select a new subnet. If there are no subnets that meet your requirements, click Create Subnet to go to the networking service console to create a new subnet.
   Figure 1 Switching to another subnet
   
6. Click OK after you change the subnet.