I've been playing around with PRTG for a couple of days and have run into a configuration that we need, but I cannot figure out how to create it efficient. We need to create services that consists of sensors from multiple devices. For example, a customer has an application that consists of two web server, two app servers and a database. If the database is down, the app is down. However, the app is only down if a specific application on both app servers or both web servers are down. If, for example, the disk space or CPU sensor is at warning because of high use, this would have zero effect on the service, even if it happened on both app server. In other words, services consist of groups of sensors and not groups of devices.
I looked at libraries, but that seems to be a visualization tool and not an operation tool. We need to be able to send notification/start actions based on the *collection* of sensors and not individual sensors. Further we need to display the Service in a dashboard and the Status of the service needs to be visible. We also need to be able to sends notifications based on the services and not individual sensors.
Any help would be appreciated.