Configuring thresholds enable OpManager to proactively monitor the resources and the services running on the servers and network devices, and raise alerts before they go down or reach the critical condition. OpManager offers multiple threshold levels namely:
You can configure multiple thresholds for the monitors that are associated to a single device, and even configure them from a device template in order to apply across multiple devices. Also, if you are going to enable custom dials, the thresholds configured for the monitor will also be applicable for the custom dial, and the color of the dial will change in real time based on the status of that monitor.
Example: The Warning threshold condition for a memory monitor is selected as greater than [>] and the threshold value is configured as 75. If the value of the monitor oscillates between 72, 80 and 73 for three successive polls, an alert is not raised for the poll with value '80' but the admin might still wish to receive an alert for it.
To avoid this, you can set the Rearm value at a considerably wide interval (say 70 in this situation) to make sure the status returns to 'Normal' only when the value goes below this threshold.
Learn more about Adaptive Thresholds.
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