Scaling In a DDM Instance

Precautions

• Scaling in a DDM instance will not interrupt services.
• Scale in your DDM instance during off-peak hours.
• Make sure that the associated data nodes are normal and not undergoing other operations.
• At least one node should be left for a DDM instance.
• After a read-only group is created, the entry for removing nodes will be moved to the operation column of the group.

Procedure

1. Log in to the DDM console.
2. On the Instances page, locate the instance that you want to remove nodes from and click its name.
3. Click Scale In. If a group is created, click More > Scale In in the Operation column in the Group Information area.
4. On the displayed page, view the current instance configuration and specify the number of nodes to be removed.
5. Click Next.
6. On the displayed page, click Submit if all configurations are correct.