Ping Monitor gathers and stores per host performance and availability data while monitoring remote hosts connectivity. This data consists of the live data, historical data and overall data. The live data is cleared as soon as the monitoring process is stopped. The historical and overall data is persisted to the program database. Let's take a detailed look on each layer of the monitoring data.
The live data is only available on the Live Data page of the Details view both for a single host selection and a multiple hosts selection. The time interval for displaying a live data is specified on the Monitoring Statistics preference page. For a single host, you can review the dynamics of the current response within the interval and compare it to the constant lines of minimum, maximum and average response and the response deviation range. The connection status changes in time are also available for a single host. For the multiple hosts, you can compare any of the performance characteristic described above for different hosts.
The historical data is stored hourly since the first time the monitoring was started. For each hour, all required characteristics are available: the monitoring time, the pause time, the uptime interval, the downtime interval and all responses characteristics. This approach allows Ping Monitor to provide you with monitoring data for specific periods of time in the past with the maximum precision of one hour. This data is used by the statistical reports and by the Historical Data page of the Details view. By default, the program stores all historical data for all hosts ever monitored until their statistics is deleted. If required, you can prevent the history database from continuous growing by configuring the historical data automatic removal on the Monitoring Statistics preference page.
The overall data speaks for itself. It contains the cumulative statistics for all the monitoring activity time. This data is displayed in the Hosts and Hosts Browser views. Also you can find it on the Overview page of the Details view of a single host.
The Delete Statistics button from the Statistics Ribbon group on the Monitoring contextual page from the Monitoring Tools category should be used to delete all monitoring data for the selected hosts.
In case you want to begin the host monitoring from scratch, you do not need to delete the host and then create a new one. Ping Monitor provides you with an option of deleting the monitoring data for any host even without stopping the monitoring process.
Please note, that both live data, historical data and overall data will be permanently deleted when deleting monitoring statistics, so it won't be possible to generate historical data reports and review historical charts for previous monitoring sessions.
To delete all monitoring data for a host, select it and press the Delete Statistics button from the Statistics Ribbon group on the Monitoring contextual page from the Monitoring Tools category. Alternatively you can use the Delete Statistics button on the toolbar and the corresponding item from the pop-up menu.