The Elastic Performance view provides a graph of system usage over different time periods for each node type on the Teradata system, allowing you to see when usage exceeds baseline. The Elastic Usage collector must be enabled to see data in the view.
The following list describes the features in this view:
- Selection Menus
- Shows and allows you to change the system and the graph type being displayed. Use the selection menus to select the following graph types:
- Average CPU per hour: Displays bars with the average CPU usage per hour. The percentage of CPU usage above baseline is highlighted in the graph.
- CPU seconds above baseline: Displays CPU seconds above baseline per day in the month graph or per week in the quarter graph.
- Displays the date range. The dates and times represent system usage displayed in the graph. The Export button allows you to create a .csv file containing data for a customized date range.
- System Usage
- Displays the actual system usage with one graph for each node type on the system. As you hover over the bars in the graph, information balloons display details about the data for the time period. The bar at the right side of the CPU seconds above baseline graph will be shorter when the entire time period is not completed and data is still being gathered.
- System CPU Limit: The CPU limit set on the Teradata system, which displays after the Elastic Limit data collector is enabled. You can set the CPU limit using the Workload Designer portlet or the Schmon utility.
- Capacity Baseline: The capacity baseline is set in the Settings view. Licensed capacity is shown below the line. Usage above the line, displayed in red, is subject to pay-per-use charges.
- Data Gap: A period of time when no usage data was available. Bars containing data gaps are represented by a lighter color. The total amount of time during which data was not available is shown in the information balloon as you hover over the bar.
Information Balloon: The information balloon for the CPU seconds above baseline graph displays the following, depending on the type of system and the settings you have chosen:
- CPU seconds above baseline: The total number of CPU seconds used that were above the baseline in the day or week period.
- Hours above baseline: The count of all hours in the day or week period that had an average CPU usage above the baseline.
- Average CPU when above baseline: The average CPU usage for all hours in the day or week period that had an average CPU usage above the baseline.
Following is an example of the Average CPU per hour graph, where the bars represent the average percent of CPU usage per hour.