diff --git a/docs/sources/panels/thresholds.md b/docs/sources/panels/thresholds.md new file mode 100644 index 00000000000..4c89b5fa358 --- /dev/null +++ b/docs/sources/panels/thresholds.md @@ -0,0 +1,75 @@ +title = "Thresholds" +type = "docs" +[menu.docs] +identifier = "thresholds" +parent = "panels" +weight = 300 ++++ + +# Thresholds + +Thresholds set the color of either the value text or the background depending on conditions that you define. + +You can define thresholds one of two ways: +* **Absolute** thresholds are defined based on a number. For example, 80 on a scale of 1 to 150. +* **Percentage** thresholds are defined relative to minimum and maximums. For example, 80 percent. + +You can apply thresholds to the following visualizations: +* Stat +* Gauge +* Bar gauge +* Table +* Graph + +## Default thresholds + +On visualizations that support it, Grafana sets default threshold values of: +* 80 = red +* Base = green +* Mode = Absolute + +The **Base** value represents minus infinity. It is generally the “good” color. + +## Add a threshold + +You can add as many thresholds to a panel as you want. Grafana automatically sorts thresholds from highest value to lowest. + +> **Note:** These instructions apply only to the Stat, Gauge, Bar gauge, and Table visualizations. + +1. Navigate to the panel you want to add a threshold to. +1. Click the **Field** tab. +1. Click **Add threshold**. +1. Grafana adds a threshold with suggested numerical and color values. +1. Accept the recommendations or edit the new threshold. + * **Edit color:** Click the color dot you wish to change and then select a new color. + * **Edit number:** Click the number you wish to change and then enter a new number. + * **Thresholds mode -** Click the mode to change it for all thresholds on this panel. +1. Click **Save** to save the changes in the dashboard. + +## Add a threshold to a Graph panel + +In the Graph panel visualization, thresholds allow you to add arbitrary lines or sections to the graph to make it easier to see when the graph crosses a particular threshold. + +1. Navigate to the graph panel you want to add a threshold to. +1. On the Panel tab, click **Thresholds**. +1. Click **Add threshold**. +1. Fill in as many fields as you want. Only the **T1** fields are required. + * **T1 -** Both values are required to display a threshold. + * **lt** or **gt** - Select **lt** for less than or **gt** for greater than to indicate what the threshold applies to. + * **Value -** Enter a threshold value. Grafana draws a threshold line along the Y-axis at that value. + * **Color -** Choose a condition that corresponds to a color, or define your own color. + * **custom -** You define the fill color and line color. + * **critical -** Fill and line color are red. + * **warning -** Fill and line color are yellow. + * **ok -** Fill and line color are green. + * **Fill -** Controls whether the threshold fill is displayed. + * **Line -** Controls whether the threshold line is displayed. + * **Y-Axis -** Choose **left** or **right**. +1. Click **Save** to save the changes in the dashboard. + +## Delete a threshold + +1. Navigate to the panel you want to add a threshold to. +1. Click the **Field** tab. (Or **Panel** tab for a graph panel.) +1. Click the trash can icon next to the threshold you want to remove. +1. Click **Save** to save the changes in the dashboard.