Alerts are generated from the CloudPod vRealize Operations Manager sizing dashboard.

Alerts
Current Sizing of the vRealize Operations Manager nodes are not sufficient for given Load.
Cluster node configuration does not follow the vRealize Operations Manager Sizing guideline.
Current Sizing of the Remote Collector is not sufficient for given Load.
Remote Collector configuration does not follow the vRealize Operations Manager Sizing guideline.
vRealize Operations Cluster has exceeded the recommended number of analytic nodes.