Viewing gauge properties
Perform this task to view performance
gauge properties for a storage device. Performance Manager gauges are user-defined,
graphical and tabular presentations of performance data and performance exceptions.
Prerequisites
Before you can view gauge properties for a storage device, you must create
and run a performance data collection task for that device.
Performance Manager supports the following gauge types:
- Performance
- The performance-type gauges present sample-level performance data. The
frequency at which performance data is sampled on a device depends on the
sampling frequency that you specify when you define the performance collection
task. The maximum and minimum values of the sampling frequency depend on the
device type. The static display presents historical data over time. The refreshable
display presents near real-time data from a device that is currently collecting
performance data.
- Exception
- An exception gauge is one, real-time occurrence of the condition in
which a measurement, derived during collection from values sent by a storage
device, exceeds a preset value (either a warning or critical value). For each
day in a time span that you select, Performance Manager reports the total
number of exceptions of each type for the selected device. (The types of exceptions
that are reported depend on the device type.) With an expanded view, you can
see information about each exception occurrence such as the time, subcomponent
identification, and the actual value of the metric when the exception occurred.
Steps
Perform the following steps to view gauge properties for
a device:
- From the IBM Director Task pane, click Multiple Device
Manager.
- Click Manage performance. The performance management
tasks are displayed.
- Drag the Gauges icon to the Group Content pane. Drop the icon
on the device for which you want to view a gauge from a previously created
performance data-collection task. The Gauges panel opens.
- The Gauges table is displayed.
The Gauges table provides the following
information:
- Gauge Name
- The gauge definition name that you entered when you created the definition.
- Description
- The gauge definition description that you entered when you created the
definition.
- Type
- The gauge type that you selected when you created the definition.
- Device
- The device that you selected during the creation of the definition.
- Date modified
- The date the definition was last modified (month, day, year).
- Select a gauge in the Gauge table to view its properties.
- Click Properties to view or change
gauge properties. The properties for the selected gauge are displayed.
- To see more details about an exception gauge,
select the gauge in the table and click Details. The
Exception details panel is displayed.
 | Note: The information provided
in the Exception details panel is device dependent. |
The
Exception details panel provides the following information:
- Gauge name
- The name you assigned to the exception gauge when you created it.
- Description
- The description of the exception gauge that you entered.
- Time
- Time stamp for the data being displayed.
- Threshold name
- The name of the threshold. For example, Disk utilization.
- Level
- Warning or Error.
- Value
- The exception data value.
- Component type
- The information in this field is device dependent.
- Time of last data collection
- The time and date of last data collection. This information comes from
Performance Manager.
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