Tables and gauges of performance data Gauges task

Gauges are graphical and tabular presentations of performance data that the Performance Manager collects from storage devices. This information is stored in both performance tables and exception tables.

Menu path
IBM Director Task pane --> Multiple Device Manager --> Manage Performance --> Gauges

A gauge displays the following information:

Gauge information
  • Name
  • Description
  • Device ID
  • Component level
  • Component ID
  • Thresholds applied to the selected metrics
  • Time of last data collection for the device or device component
Actions you can take
  • Adjust the date and time range of the display
  • Adjust the metric selection for the displayed component
Gauge
For performance gauges, each selected metric is represented by one line in the graph. By default, lines for all the metrics are included in the chart. The y-axis of the chart shows the metric value. The x-axis shows the date and time.

For exception gauges, the exception count for the selected device is shown in a bar chart. For each day selected in the gauge definition, the chart displays one bar. The y-axis of the chart shows the number of threshold exceptions detected during the period you specified when you created the gauge. The x-axis shows the dates that you selected when you created the gauge.

Table
For most of the gauges, the table contains the data used to create the graph. Typically, this information includes date, time, and the metrics that you specified when you created the gauge. Exception tables provide a count of warning and critical thresholds exceeded for each of the thresholds that are enabled. If the Performance Manager is checking for thresholds, threshold information is included in the gauge information section and in the graphic of the gauge display. On the graph, warning and critical thresholds are indicated by a watermark. The actual threshold values (warning and critical) are shown in the gauge information section.

To view more information about an exception gauge, select it in the table and click Details. The Exception details panel is displayed. It provides the following device-dependent 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 displayed data.
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 is provided by Performance Manager.

Fields
Performance Table
Date
Time
Metric name
Exception Table
Date
Warning exceeded threshold name
Critical exceeded threshold name
Related topics Gauges task

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