PRTG Manual: SNMP QNAP System Health Sensor
The SNMP QNAP System Health sensor monitors the system health of a Quality Network Appliance Provider (QNAP) network-attached storage (NAS) via the Simple Network Management Protocol (SNMP).
SNMP QNAP System Health Sensor
For a detailed list and descriptions of the channels that this sensor can show, see section Channel List.
- Dutch: SNMP QNAP Systeemstatus
- French: QNAP état du système (SNMP)
- German: SNMP QNAP Systemzustand
- Japanese: SNMP QNAP システム正常性
- Portuguese: Funcionamento do sistema QNAP (SNMP)
- Russian: Работоспособность системы QNAP по SNMP
- Simplified Chinese: SNMP QNAP 系统健康状况
- Spanish: Salud de sistema QNAP (SNMP)
- This sensor supports the IPv6 protocol.
- This sensor has a low performance impact.
- For a general introduction to the technology behind SNMP, see section Monitoring via SNMP.
The Add Sensor dialog appears when you manually add a new sensor to a device. It only shows the settings that are required to create the sensor. You can change nearly all settings on the sensor's Settings tab after creation.
QNAP NAS Settings
Setting |
Description |
|---|---|
Unit |
Select the unit of the temperature measurement:
|
Click the Settings tab of a sensor to change its settings.
Basic Sensor Settings
Setting |
Description |
|---|---|
Sensor Name |
Enter a name to identify the sensor. |
Parent Tags |
Shows tags that the sensor inherits from its parent device, parent group, and parent probe.
|
Tags |
Enter one or more tags. Confirm each tag with the Spacebar key, a comma, or the Enter key. You can use tags to group objects and use tag-filtered views later on. Tags are not case-sensitive. Tags are automatically inherited.
The sensor has the following default tags that are automatically predefined in the sensor's settings when you add the sensor:
|
Priority |
Select a priority for the sensor. This setting determines the position of the sensor in lists. The highest priority is at the top of a list. Choose from the lowest priority ( |
Usually, a sensor connects to the IP Address/DNS Name of the parent device. See the device settings for details. For some sensors, you can explicitly define the monitoring target in the sensor settings.
QNAP NAS Settings
Setting |
Description |
|---|---|
Unit |
Shows the unit of temperature measurement that the sensor monitors.
|
Sensor Display
Setting |
Description |
|---|---|
Primary Channel |
Select a channel from the list to define it as the primary channel. In the device tree, the last value of the primary channel is always displayed below the sensor's name. The available options depend on what channels are available for this sensor.
|
Graph Type |
Define how different channels are shown for this sensor:
|
Stack Unit |
This setting is only visible if you enable Stack channels on top of each other as Graph Type. Select a unit from the list. All channels with this unit are stacked on top of each other. By default, you cannot exclude single channels from stacking if they use the selected unit. However, there is an advanced procedure to do so. |
By default, all of these settings are inherited from objects that are higher in the hierarchy. We recommend that you change them centrally in the root group settings if necessary. To change a setting for this object only, click 
under the corresponding setting name to disable the inheritance and to display its options.
For more information, see section Inheritance of Settings.
Scanning Interval
For more information, see section Root Group Settings, section Scanning Interval.
Schedules, Dependencies, and Maintenance Window
You cannot interrupt the inheritance for schedules, dependencies, and maintenance windows. The corresponding settings from the parent objects are always active. However, you can define additional schedules, dependencies, and maintenance windows. They are active at the same time as the parent objects' settings.
Schedules, Dependencies, and Maintenance Window
For more information, see section Root Group Settings, section Schedules, Dependencies, and Maintenance Window.
Access Rights
For more information, see section Root Group Settings, section Access Rights.
Which channels the sensor actually shows might depend on the target device, the available components, and the sensor setup.
Channel |
Description |
|---|---|
Available Memory |
The available memory in bytes |
CPU Temperature |
The temperature of the CPU |
CPU Usage |
The CPU usage in percent
|
Downtime |
In the channel table on the Overview tab, this channel never shows any values. PRTG uses this channel in graphs and reports to show the amount of time in which the sensor was in the Down status in percent. |
Fan [#] (System FAN [#]) |
The fan revolutions per minute (RPM) |
System Temperature |
The system temperature |
Knowledge Base
What security features does PRTG include?
Why do I get DoS alarms on my QNAP?
My SNMP sensors don’t work. What can I do?
