As per our example, the housekeeping needs to be configured, as shown in the following screenshot, with a history data storage period of 730 days and a trend data storage period of 28 days. Here, you can change those values bearing in mind that you also need to change the parameter passed to the stored procedures.

To change the housekeeping setting in the web interface, you simply need to go to Administration | General | Housekeeping (from the drop-down list), and here is the configuration: