Databricks pool - 2 instances are in running state without any job running in the system

eager_to_learn
New Contributor III

We are using Azure Databricks pools, configured 16 max instances. Out of 16, 2 instances are in running state without any job in running condition, how & where can i check the usage of the instances ?

p.s. SQL pool is also not running, so no chances of instances being consumed there.