Understanding the Efficiency badge
The Efficiency badge is the last major badge, and it advises us on how efficient we are being with our resources in terms of right-sizing and target density ratios.
Issues relating to efficiency are rarely issues that you would need to be alerted on, however, they are useful for reporting and ensuring 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 compute resources currently assigned to your virtual machines.
In vSphere, Reclaimable Capacity is only applied to virtual machines, as it is seen that VMs are fairly straightforward to right-size as requirements change in the environment. The same could not be said for hosts, for example, as adding or removing resources from physical hosts based on demand would not be seen as a common task.
Although Reclaimable Capacity only applies to virtual machines, objects such as Clusters, Hosts, Datastores...
