Changing Update Frequency for Statistics and Charts

You can control the rate at which data on monitor screens and charts is refreshed, the amount of time covered by charts, and the multiplex nodes included in charts.

1. In the Perspective Resources view, select a resource, click the arrow, and select Monitor Node.
   For a multiplex resource, select Monitor Multiplex.
2. In the left pane of the IQ Node Level Monitor or IQ Multiplex Level Monitor view, select Settings.
3. For Screen Refresh Interval, enter the number of seconds between refreshes. You can also use the up and down arrows to select the appropriate number of seconds.

   The default is 30 seconds.

   Note: Refreshing a screen redraws it with the most recent data in the Sybase Control Center repository. This setting has no effect on the frequency of data collection.
4. For Chart Trend Period, enter the number of minutes of data to appear in charts.
   The minimum number of minutes is 5, and the maximum number is 999999999. The default is 30 minutes.
   Because data is added to a chart only when it is open, a chart contains data starting from when you opened it. Each refresh interval adds new data to the end of the graph. A chart trend period of 30 minutes shows the statistics trend over the last 30 minutes, even if the view has been open longer than 30 minutes.
5. For multiplex-level monitoring:
   1. For Maximum Number of Nodes to Show in Chart, enter the maximum number of nodes to include in any monitoring charts.
      The default is 10 nodes.
   2. Click Select Nodes, then choose the nodes to include in the monitoring charts. You cannot select more than the maximum number of nodes.
   3. Click OK.
6. Click Apply.