I would like to draw a horizontal line in graphs to indicate a limit, or have some similar indicator to see immediately when a pre-defined limit is breached.
How can I achieve this?
Created on Mar 4, 2013 9:24:10 AM by
How can I display limits in graphs with PRTG?
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This article applies to PRTG Network Monitor 13.1.3 or later
Set Limit Markers in Graphs
PRTG’s graphs will automatically display limits you set in the sensor channel settings. You can set upper/lower error and/or warning limits. Limits will automatically set a sensor into Warning and/or Down status. Each limit will automatically be shown as a yellow or red area in a sensor graph if you configure the graph to show one sensor channel only.
| Sensor Channel Limit | Color of Area in Graph |
|---|---|
| Upper Error Limit | red |
| Upper Warning Limit | yellow |
| Lower Warning Limit | yellow |
| Lower Error Limit | red |
For example, a traffic graph with limits can look like the following:
Configuration Step-by-Step
In order to create a graph display like this, please ensure the following:
- In the sensor channel settings, in the Display section, set the option Hide from graphs for all sensor channels except for one—the one you want to have a graph with limits for.
- For the remaining sensor channel, in the Limits section, Enable Limits and set error and/or warning limits. Save your settings.
- Return to the sensor’s Overview tab to check the graph display. In order to get a filled graph, set the remaining sensor channel as Primary channel for this sensor. All other sensor channels will be displayed as a line only.
Other alternative(s):
For "visual markers" only (A limit which doesn't affect the sensor's status) you may employ a Sensor Factory Sensor.
Created on Mar 4, 2013 9:38:28 AM by
Last change on Jan 15, 2019 1:56:21 PM by
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Hi there,
This is still working. You should see the red and yellow area in the graphs.
Is it possible that your limit is far above the current value? This would mean that the error limit area is out of the view of the graph.
Best regards.
Created on Jun 25, 2019 9:07:33 AM by
Disclaimer: The information in the Paessler Knowledge Base comes without warranty of any kind. Use at your own risk. Before applying any instructions please exercise proper system administrator housekeeping. You must make sure that a proper backup of all your data is available.
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