You can apply tags to organize and group Recovery Service subnets based on their purpose.

RECOVERY_SERVICE_SUBNET_UPDATE

1. Log in to your OCI tenancy.
2. In the navigation menu, click Oracle Database, and select Database Backups to display the Database Backups page.
3. Click Recovery Service Subnets.
4. Use the List scope option to choose a compartment containing the required subnet.
5. In the Recovery Service subnets list, click the Action menu, and select Add tags. Alternatively, click the name of the required resource item, and then click Add tags.
   The Add tags dialog box is displayed.
6. In the Tag namespace field, consider adding a tag namespace (an identifying text string applied to a set of compartments), or tagging the Recovery Service subnet with an existing tag namespace.
7. Click Add tags.