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Can a node only alert if it has been down for a certain period of time?

My company is currently running Network Performance Monitor and we would like to start monitoring nodes that restart several times a day at random times. As these are restarts we allow we don't want alerts if the machine is down a short amount of time due to the restart. What I would like to configure is for alerts to only be triggered on these devices if they are down longer than 15 minutes. Would this be possible?

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Accepted answers

cbunge

We've found 5 minutes delay works well. Evaluate the trigger every minute, on the first tab of alert creation, then we configure most of ours like this:

In this, I have a global shutoff for the alert so I don't have to edit the alert and retrigger everything. This is the Node Alerting must equal 'No'. If yes, it actually disables in our environment (reverse of what we meant to do, but whatever). Then I say it must be down, Then I say it must be in specific countries/cities/regions/etc. Whatever I want to filter down to.

All comments

asonberg

Yes if you go into settings then click manage Alerts and then check the alert that you want and then click edit alert. Up at the top click on trigger condition and then towards the bottom you will see a check box that says Condition must exist for more than. Check the box and then select desired time you want before it triggers.

scott9999

Thanks asonberg. Would I be able to create a custom alert for this group in the manage alerts area and have it only affect my group of computers that restart frequently? The reason I ask is I don't want to edit the current alerts that target nodes that should not restart.

cbunge

We've found 5 minutes delay works well. Evaluate the trigger every minute, on the first tab of alert creation, then we configure most of ours like this:

cbunge

It's important to note, if you are already getting alerts on these during reboots, you will have to exclude your machines from the current alert created.