Historical Health Data Overview

You can view the historical online rate of resources and devices, or the recording integrity rate.

On the top, select > Basic Management > Maintenance.

Select Health Monitoring > History Overview on the left.

Figure 1 Historical Health Data Overview

Table 1 Historical Health Data Page
Section	Description
Filter Data	Select a time period from the drop-down list in the upper right corner of each section for filtering data by day, week, or month.
Resource Online Rate	On the line chart, you can perform the following operations: Move the cursor on the line chart to view the camera online rate and the number of offline cameras at specific time points. Click the a dot on the line to go to Resource Log page to view the detailed network status of cameras at that time point. On the doughnut chart, you can perform the following operations: Move the cursor to red part of the doughnut chart to view the number of the cameras which once were offline and the offline rate during the time period you select. Move the cursor to the green part of the doughnut chart to view the number of the cameras which stay online and the online rate during the time period you select. On the table, you can do one of the followings: Click Total Offline Duration to rank the cameras in terms of total offline duration within the time period you select. Click Offline Times to rank the cameras in terms of offline times within the time period you select.
Device Online Rate	On the line chart, you can do one of the followings. Move the cursor on the line chart to view the device online rate and the number of offline devices at specific time points. Click the a dot on the line to go to Device Log page to view the detailed network status of devices at that time point. On the doughnut chart, you can perform the following operations. Move the cursor to red part of the doughnut chart to view the number of the devices which once were offline and the offline rate during the time period you select. Move the cursor to the green part of the doughnut chart to view the number of the devices which stay online and the online rate during the time period you select. On the table, you can do one of the followings. Click Total Offline Duration to rank the devices in terms of total offline duration within the time period you select. Click Offline Times to rank the devices in terms of offline times within the time period you select.
Recording Integrity Rate	On the line chart, you can move the cursor to view the recording integrity rate at specific time points. Click the a dot on the line to go to Resource Log page to view the detailed resource status of devices at that time point.
Recording Copy-Back Rate	On the line chart, you can move the cursor to view the recording callback rate at specific time points. Click a dot on the line to go to Resource Log page to view the detailed resource status of devices at that time point.
Select Site	In the upper left corner of History Overview page, select a Current or Remote Site from the drop-down list to display the historical data of resources on the Site.
Refresh	Manually Refresh: Click Refresh in the upper right corner of History Overview page to manually refresh the data on the page. Auto Refresh: Go to Maintenance > Basic Configuration > Health Check Frequency to set the interval for automatically refreshing the data on the page. See details in Set Health Check Frequency.
Export Overview Page or Exception Data	Click Export in the upper right corner of History Overview page to export the page in PDF format. Or you can check Export Exception Data to export the exception data in Excel/CSV format. Figure 2 Export Overview Page or Exception Data