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Sensory Factory Downtime Calculation and Notifications

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Ok, so first of all using Sensor Factory Sensors has really improved our remote monitoring allowing us to only notify when all sensors are down. This has reduced 'alert fatigue' from false positives related to external network problems.

I've read that the Sensor Factory is unable to calculate downtime... This is too bad, as it seems like everyone wants this. Any explanation why downtime won't work?

Also, is there any way to send the sensor into Warning when 1 or more (but not all) sensors report down? This would be very useful in notifying us that something is wrong, but not with our environment. Information the Support Departments could use when we get reports that users in some area are having trouble connecting.

downtime prtg sensor-factory warning

Created on Dec 11, 2012 6:20:41 PM by  Ryan Biddle (10) 1

Last change on Dec 13, 2012 12:48:05 PM by  Daniel Zobel [Product Manager]



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The issue with the downtime computation for Sensor Factory sensors is somewhat complicated to explain. In essence, the necessary information for the computation may no longer be available, seeing as only already computed averages are retained. This can lead to issues, for example, if you have two 1 hour averages, both with a 50% downtime - it is possible the two will overlap or not be available at all. The value would then be somewhere between 50% (overlapping) and 100% (no overlapping), so the actual value yielded would not necessarily be accurate.

As regards the notification for multiple sensors: it is not currently possible to set a warning state, but you can use the status() function of the Sensor Factory sensor to define a boolean down state. You will find more information under Sensor Factory sensor.

Created on Dec 12, 2012 10:07:23 AM by  Patrick Hutter [Paessler Support] (7,225) 3 3



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