Tables and gauges of performance data
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.
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 Displays the date of data collection. |
Time Displays the time of data collection. |
Metric name Displays the value of the metric that you selected
when you created the gauge (from 0 to the greatest value registered by the
performance data). The number of metric columns is the same as the number
of metrics selected when you created the gauge. |
Exception
Table |
Date Displays the date of data collection. |
Warning exceeded threshold name Displays the count of how many times the threshold
exceeded the warning value. The number of Warning exceeded
threshold name columns depends on the number of enabled thresholds types
that exceeded the warning value. |
Critical exceeded threshold name Displays the count of how many times the threshold
exceeded the critical value. The number of Critical exceeded
threshold name columns depends on the number of enabled thresholds types
that exceeded the critical value. |
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