Scaling COD instances vertically

You can scale up a COD cluster vertically, which means upgrading a COD cluster from a LIGHT duty to a HEAVY duty instance type. You can only upgrade COD clusters belonging to the Gateway and Master nodes.

Selecting a larger instance type adds more vCPU and/or RAM to your instances. You can scale up instances from LIGHT to HEAVY using the CDP CLI command tool.

You must stop the COD cluster before you vertically scale any of the instances.
You must grant CDP_CB_AWS_VERTICAL_SCALE entitlement for the specific tenant.
You must stop EBS-backed instances before scaling. Vertical scaling is supported on AWS only. See Change the instance type in AWS documentation for more information.
You must ensure that the COD clusters belong only to Gateway nodes or Master nodes.
You must download and install the latest CDP CLI beta version.

Log in to the CDP CLI command tool.
Run the following command.
cdp opdb update-database --environment <environment_name> --database <database_name> -–vertical-scale <Group_type_for_the_database_nodes>
The following are the possible values for the group type for the database nodes:
- GATEWAY: Value of the group variable as GATEWAY.
- MASTER: Value of the group variable as MASTER.
For example,
```
cdp opdb update-database --environment-name cod-7216-micro10 --database-name odx2408 --vertical-scale MASTER
```

Start the cluster after you have vertically scaled it. You can also configure the services on the cluster to use the additional or reduced resources/memory.