Explanation/Reference:
Explanation:
You can use the bkup_api utility to create an on-demand backup of a database deployment hosting a single-instance database or an Oracle Data Guard configuration.
1. Connect as the opc user to the compute node. In a Data Guard configuration, connect to the compute node hosting the primary database.
2. Start a root-user command shell:
$ sudo -s
#
3. You can choose to have the backup follow the current retention policy, or you can choose to create a long-term backup that persists until you delete it:
To create a backup that follows the current retention policy, enter the following bkup_api command:

# /var/opt/oracle/bkup_api/bkup_api bkup_start
To create a long-term backup, enter the following bkup_api command:

# /var/opt/oracle/bkup_api/bkup_api bkup_start --keep
1. Exit the root-user command shell and disconnect from the compute node:
# exit
$ exit
References: Using Oracle Database Cloud Service (February 2017), 6-4
https://docs.oracle.com/en/cloud/paas/database-dbaas-cloud/csdbi/using-oracle-database-cloud- service.pdf