Time for action – creating your first threshold – Part 2
You are now going to define a High / Low Values threshold, so select High / Low Values as the Threshold Type.
Look at the sample graph at the top of the page and set a good High Threshold which is relatively near or just below the maximum limit of your graph. This will allow you to check the functionality of the alerting later on. In the following graph example the High Threshold value should be set to 0.3:
Select 5 minutes as the Breach Duration.
Leave the Data Type to Exact Value.
Select the account that shows up in the Notify accounts field.
Click on the Save button.
What just happened?
You've finished creating your first threshold. By selecting a high threshold value that's near your normal average load, you should receive an alert e-mail when there's a high load on your system.
As you may have noticed, you skipped the Data Type field, leaving it to the default value. What's the purpose of this field? Depending on the data source type...