Launching Teradata Server Management
Teradata Database supports multiple instances of Teradata Server Management in the public cloud. Multiple instances (CMICs) provide high availability and management of larger database systems. High availability requires at least two CMICs, each of which can manage up to 70 nodes.
If you have already launched a single CMIC, you can launch an additional CMIC for high availability by running
cmic-cloud-config --ha on the existing CMIC. This option automatically configures the newly launched CMIC to communicate with the existing CMIC.
When you launch multiple CMICs using CloudFormation, the CMICs are automatically configured to communicate with each other. However, the newly launched CMICs must be configured manually to manage the existing database and application nodes in the Teradata ecosystem.