What is a module? Modules are units of information stored within an agent. They are the monitoring elements used to extract information from the device or server that the agent points to. Modules have different data types, such as boolean , numeric, or alphanumeric. Depending on the information collected by the module, it will be of one type or another. Each module can only store one type of metric. Within the same agent, there cannot be two modules with the same name. All modules have an associated status, which can be: Not initiated: Where no data has been received yet. Normal: Data is being received with values outside the warning or critical thresholds. Warning: Data is being received with values within the warning threshold. Critical: Data is being received with values within the critical threshold. Unknown: The module has been working but has stopped receiving information for a certain period of time.