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  5. Setting up thresholds and alerts

Setting up thresholds and alerts

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Setting up thresholds

Each sensor (for example processor time, available memory, etc.) has its own threshold values. Let’s review and edit these values for a particular sensor:

  1. Find the device in question by navigating to Infrastructure > Device list, and clicking on the name of the device.
    Tip: To quickly edit your own user settings, click on your username at the top right of the screen.
  2. We’re now looking at the device settings. On the General tab, we can verify that the device is active, and that Send alerts for this device is active as well.
  3. On the Sensors tab, we can see all sensors for this device. Click on the name of a sensor (for example, choose Processor time) to review its settings.
    Tip: if you want to send a copy of e-mail alerts to several addresses, you can enter extra e-mail addresses in the alert definition itself, without having to create extra users for it.
  4. The Default settings should be fine. On the Sensor properties tab, we can find the threshold values for this sensor:
  • Value too high warning level: We will generate a warning when the sensor readings exceed this value. For a Processor time sensor, this value is usually set to 90%.
  • Value too high error level: We will generate an error when the sensor readings exceed this value. For a Processor time sensor, this value is usually set to 95%.

You can adjust these values to suit your needs. The new settings will be effective immediately when you click Save.

Tip: You can review whether any warnings or errors have occurred, by navigating to Dashboards > Error overview.

Setting up alerts

Your account should already contain default Alert definition settings, but you can adjust those, or create additional alert definitions.

  1. Go to Alerts > Show alert definitions, and click on the name of an existing alert definition (for example, choose Default alert). Alternatively, create a new alert definition by choosing Alerts > Add alert definition.
  2. On the Alert definition tab, we can verify that these alert settings are active, and which devices and device groups are covered by this alert definition. The default alert definition covers all devices, but you can choose any combination you need. Devices and groups can even be covered by multiple alert definitions if you want.
  3. On the Escalation level tab, we can specify how quickly an alert should be sent, and to whom.
  • Timeout (more severe): We will generate an alert message if the device’s status stays at warning (yellow) or error (red) for more than 5 minutes. You can adjust that value here.
  • Timeout (less severe): We will generate a message immediately (after 0 minutes) if the device’s status goes back to OK (green). You can adjust that value here.
  • Users and user groups: Specify which users should receive a message, when this alert definition is triggered.

Other settings include settings for reminder alerts, whether to send e-mail and or SMS/text message alerts, and any additional e-mail addresses that should receive a copy of e-mail alerts. Remember to set your mobile phone number in your user settings if you want to receive SMS/text alerts on your phone.

Tip: You can review whether any alert message have been sent out (either through e-mail or SMS) by navigating to Alerts > Alert list.
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