Quotas show as 0M in WHM after configuring backups

Symptoms

After configuring or making an adjustment to the backups on the machine, all the accounts in WHM show 0M. 

Cause 

If the backups are configured to be stored in /home on the machine, cPanel & WHM disables the quotas on that partition to improve server performance.  This notification is provided in the output of the /scripts/fixquotas command on the system:

# root@server [~] # /scripts/fixquotas
journaled quota support: kernel supports, user space tools 
  supports (available)
checking out /home/backup
The system will leave quotas disabled on /home in order to
prevent performance degradation.

You can also review this information in our documentation:

cPanel Documentation: Backup Configuration

Warning: To prevent performance degradation, the system automatically 
disables quotas on non-root filesystems that contain a backup destination.

Resolution

Configure the server to not store backups inside /home.  The ideal solution would be a separate drive that is only used for backup data.

Where can I configure cPanel backups?