Hyperic is application monitoring and performance management for virtual, physical, and cloud infrastructures. Auto-discover resources of 75+ technologies, including vSphere, and collect availability, performance, utilization, and throughput metrics.
Harpia is a tool for monitoring applications in a agentless way. It's able to monitor several resources: servers, DBMS, web servers, email servers, web sites and others. Moreover, is capable for sending alerts, generate reports and manage SLAs.