Admin level users has access to monitor storage usage through the Storage control panel.
Go to Admin > Storage. On the Storage overview page, you can see how much storage you have used.
Notice: All Administrators will receive an email notification when your account reaches 70%, 80%, and 90% of your storage limit.
More details Storage usage
Below the Storage progress bar you can see how your total storage has been calculated.
Important: Only Administrators and users with “Storage Access” permission can access the Storage overview page.