Understanding the Efficiency badge
The Efficiency badge is the last major badge and it shows us how efficient we are with our resources in terms of rightsizing and target density ratios.
Issues related to efficiency are rarely issues that you would need to be alert of; however, they are useful to report and ensure that you are getting the most out of your infrastructure.
The Reclaimable Capacity badge
The Reclaimable Capacity badge is a graphical representation of the amount of unused computing resources currently assigned to your virtual machines.