How can I tell how much data is stored in a Google Shared drive?

 

  1. Within your Google Drive, expand the Shared drive section by clicking the right-facing triangle
    Expand Shared drive section
  2. Click the Shared drive you want to see the total storage for
    Expanded Shared drive
  3. In the upper right corner, click the View Details button
    Shared drive View Details
  4. A details pane will expand on the right - in the Drive Details section, the total storage of the Shared drive will be displayed under Storage used
    Drive details

If over quota for the Shared drive, there will be a red line under the Storage Used value.

Shared drive Over Quota