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Per-Sensor Historic Sensor Data Limits



We are at the point in our PRTG installation where we're consuming approximately 10GB of log space every month in the "%programdata%\Paessler\PRTG Network Monitor\Monitoring Database" location. As you can imagine, we'd like to minimize this. Is it possible to change specific sensors to store data for a shorter time limit than the global settings available in PRTG? For example, we have several switches with several interfaces, and don't necessarily need or want that data taking up considerable space on our server.

Thanks in advance, Matt

historic historic-data historical-data logs prtg

Created on Oct 19, 2015 8:40:43 PM

1 Reply



Dear Stan

There is only the global setting for historic data purge.

The Monitoring Database folder uses one folder per day and one file per device. In principle, you could manually delete historic data from devices, or do it with a script which runs via the Windows scheduler. However this should be done with caution to not accidentally delete the wrong files.

In general, it is not recommended to manually delete files from that folder, because this leads to an inconsistent PRTG experience since the aggregated (averaged) data used for some graphs is stored in the graph data cache, which is a separate file which cannot be manipulated manually or by a script.

The better option is to move the data folder to a storage which has enough capacity to store all sensor data.

Created on Oct 21, 2015 11:51:58 AM by  Arne Seifert [Paessler Support]

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.