The vSphere Web Client displays the results of health tests for the following vSAN monitored groups:
Stretched Cluster (if enabled)
Each group contains several individual checks. If a check fails, the vSAN adapter issues a warning or error level alert. The alert indicates the host or cluster where the problem occurred and provides a recommendation to clear the alert. For a complete list of all vSAN health test alerts, see Knowledge Base article 2114803.