You can use the system health dashboard in Horizon Administrator to quickly see problems that might affect the operation of Horizon 7 or access to remote desktops by end users.

The system health dashboard in the top left of the Horizon Administrator display provides a number of links that you can use to view reports about the operation of Horizon 7:

Sessions
Provides a link to the Sessions screen, which displays information about the status of remote desktop and application sessions.
Problem vCenter VMs
Provides a link to the Machines screen, which displays information about vCenter virtual machines, RDS hosts, other machines that Horizon 7 has flagged as having problems.
Problem RDS Hosts
Provides a link to the RDS Hosts tab on the Machines screen, which displays information about RDS hosts that Horizon 7 has flagged as having problems.
Events
Provides links to the Events screen filtered for error events and for warning events.
System Health
Provides links to the Dashboard screen, which displays summaries of the status of Horizon 7 components, registered Unified Access Gateway details for version 3.4 or later, vSphere components, domains, desktops, and datastore usage.

The system health dashboard displays a numbered link against each item. This value indicates the number of items that the linked report provides details about.