To setup backup to Google Drive, follow the instructions below.
1) Log in as the root user to WHM.
2) Navigate to Home >> Backup >> Backup Configuration and scroll down to the section under 'Additional Destinations.'
3) From the drop-down option labeled 'Destination Type,' pick Google Drive.
4) Next, click 'New destination'.
5) Type the name of your preferred destination.
6) Navigate to the folder in which you want to store backups.
7) Enter your customer identification number.
8) To produce the credentials file, click 'Generate Credentials'. A new tab will open, requesting permission to access your Google Drive data.
9) Enter the period of the Timeout.
10) Select 'Save Destination' from the drop-down menu.