How PRTG stores monitoring data for a long time period? For ex. if i have Ping sensor with one minute Scanning Interval will PRTG store this data with same period for 365 days? Or it will store last 90 days result with 60 sec. period, next 90 days with only 5 minute period result will be saved and next next...?

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Attention: This article is a record of a conversation with the Paessler support team. The information in this conversation is not updated to preserve the historical record. As a result, some of the information or recommendations in this conversation might be out of date.

Hello Vasily,

PRTG stores the raw data for the whole time (default 365 days). Please note that PRTG will calculate averages if a time span longer then 40 days is called.

I hope this clarifies the behavior.

Kind regards,
Birk Guttmann, Tech Support Team


Oct, 2018 - Permalink

Can this behavior be changed?


Oct, 2018 - Permalink

Dear Vasily,

the default time frame to keep historic data is 365 days. You can change this via menu "Setup" / "System Administration" / "Cores&Probes", section "Historic Data Purging", field "Historic Sensor Data".


Oct, 2018 - Permalink