The QuickView tab explains the different alert types you may see including those on low disk pace and server usage. Further the frames of the tab are described.
The Alerts frame shows different alerts including disk space warnings and server usage alerts across a selected timeframe. This frame looks at database table operations including
UPDATE across a selected timeframe.
The Upsize / Downsize by node frame shows upsizes and downsizes by node across a selected timeframe. This is used to evaluate whether there was a change in cluster size during the selected time period.
The CPU Utilization frame shows CPU utilization by nodes across the selected timeframe.