What is the meaning of the lighter shaded line in a Foglight graph?
Notice how the line goes from dark blue to light blue and then back again in the document attached.
The shaded line usually indicates a problem in processing the information at that period of time.
It could be that the Management Server was running at the time however the data could be missing or not accurate due to a network issue or an overloaded server.
Check the logs for that period of time together with the performance report.
If the shaded line appears in most of the graphs for that period of time than it might be related to FMS performance issue.
In addition it is recommended that to export the data from the line chart to CSV or Excel.
Check the start and end times and periods of the metric observations to verify consistency
Expand the zonar or time range on the upper portion of the console and change the Granularity to a higher value (e.g. 15 minutes).