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How can I reset the statistics for a specific sensor or device?

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I'm looking for a way to reset the statistics/data for a sensor/device without having to remove and re-create it. Doing this would be quite tedious if I were to perform these steps manually. I understand that creating a template would work, but given my situation, that adds way more time to the process than I would like. Here's why...

As part of the PRTG implementation, I am configuring each device/sensor and then testing out the monitoring/notification components related to each. This includes group notifications, e-mail information (tweaking the information included), timing, etc. The problem is that once the testing portion is complete, the graphs, percentages, etc. are inaccurate -- they include all of the data collected during the testing phase (simulated outages). For example, the availability % on one of my servers indicates it's been 'up' 83% even though a good portion of that was due to the testing. I realize that over the course of time this percentage will increase and become more accurate, but I'd rather find a way to re-start the statistics/data gathering rather than start over or have to "explain" why there's a spike or drop in a particular graph and data percentages.

data device graphs logging sensor stats

Created on Mar 30, 2010 2:31:59 PM by  Jonathan Lance Aughey (60) 1 1



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Hello,

if it is only about individual sensors, you could try to clone the sensor in question to the same device. This would give you a new sensor with the same settings, and you could delete the old one. You could do the same for devices (if you want to 'erase' all historic data for a specific device). Or you could delete the data-files for these individually. You would have to go into the Monitoring Database folder of PRTG (Please see How does PRTG store its data?), and then into the daily folders. In there please delete the file with the correct ID (matching the ID from the device where you want no historic data, the ID can be discerned from the URL when viewing the device) for every day it has recorded data. After this, it is necessary to stop the PRTG Core Service, and delete the 'PRTG Graph Data Cache.dat' (in the PRTG Data folder), and restart the PRTG Core Service.

Best Regards.

Created on Mar 30, 2010 3:47:21 PM by  Torsten Lindner [Paessler Support]

Last change on Mar 31, 2010 7:49:58 AM by  Daniel Zobel [Paessler Support]



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Works for me! Many thanks.

Created on Mar 30, 2010 10:05:38 PM by  Jonathan Lance Aughey (60) 1 1



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Disclaimer: The information in the Paessler Knowledge Base comes without warranty of any kind. Use at your own risk. Before applying any instructions please exercise proper system administrator housekeeping. You must make sure that a proper backup of all your data is available.