This section lists the different Performance Manager commands that you can issue. You can use these commands to collect data, list detailed information, start and stop performance tasks, and monitor performance. This section provides an overview of the types of tasks you can perform by issuing the Performance Manager commands.
Performance collection data: Performance collection data encapsulates the information that the Performance Manager needs in order to collect performance data. Each performance task has a unique name. It is associated with a set of devices of like types, has a sampling frequency (a frequency in which performance data can be sampled), and a duration of which the performance data can be sampled on each device associated with the task.
A collection task will in general contain the following information for each device:
Testing for threshold exceeded conditions: Performance Manager enables you to specify critical and warning threshold values for a subset of performance metrics. This information is saved in the Performance Manager database. Performance Manager provides default threshold values for some of those metrics. For a device and metric combination, you can use Performance Manager panels to enable (default) or disable threshold checking. For each of the metrics pertaining to a device, you can also specify if the Performance Manager should send an alert when a threshold exceeded condition occurs.
Performance-type gauges: The performance-type gauges present sample-level performance data. The frequency at which the performance data is sampled on a device depends on the sampling frequency that you specify during the definition of the performance collection task. The sampling frequency, in general, has a maximum and minimum value depending on the device type. There are two variations of performance gauges:
Displaying gauges: Each gauge that you define with the GUI is identified by a unique gauge name that you can see with the lsgauge command. You can then delete a named gauge with rmgauge, or see its attributes with showgauge.