The Heat Map widget contains graphical indicators that display the current value of two selected attributes of objects of tag values that you select. In most cases, you can select only from internally generated attributes that describe the general operation of the objects, such as health or the active anomaly count. When you select a single object, you can select any metric for that object.

How the Heat Map Widget Works

You can add the Heat Map widget to one or more custom dashboards and configure it to display data that is important to the dashboard users.

The Heat Map widget has a General mode and an Instance mode. The General mode shows a colored rectangle for each selected resource. In the Instance mode, each rectangle represents a single instance of the selected metric for an object.

You can click a color or the size metric box in the bottom of the Heat Map widget to filter the display of cells in the widget. You can click and drag the color filter to select a range of colors. The heat map widget displays cells that match the range of colors.

When you point to a rectangle for an object, the widget shows the resource name, group-by values, and the current values of the two tracked attributes.

You edit a Heat Map widget after you add it to a dashboard. The changes you make to the options create a custom widget that provides information about an individual object, a custom group of objects, or all the objects in your environment.

Where You Find the Heat Map Widget

In the menu, click Dashboards > Actions > Create Dashboard to add a dashboard or click Dashboards > Actions > Edit Dashboard to edit the selected dashboard. Toggle between the Views and Widgets option to view and add a widget to the dashboard. In the widgets list panel, you will see a list of all the predefined widgets. Drag a widget to the dashboard workspace in the upper panel. On the title bar of the selected widget, click the Edit Widget icon to access the configuration options.

The data that appears in the widget depends on how you configured it.

To configure the widget, click the Edit Widget icon on the widget title bar.

The alert list widget includes toolbar options, data grid options and configuration options.

Table 1. Heat Map Widget Toolbar Options

Option

Description

Dashboard Navigation

Actions you can run on the selected alert.

For example, you use the option to open a vCenter Server, data center, virtual machine, or in the vSphere Web Client, allowing you to directly modify an object for which an alert was generated and fix any problems.

Group Zoom

You can roll-up non-significant resources with similar characteristics into groups to obtain only the relevant data among the thousands of resources in the system. The roll-up method improves performance and decreases the memory usage. The roll-up box encompasses the average color and the sum of the sizes of all the resources. You can view all the resources by zooming in the roll-up box.

Show/Hide Text

Show or hide the cell name on the heat map rectangle.

Show Details

If you configure the Heat Map widget as a provider to another widget, such as the Metric Chart widget , you can double-click a rectangle to select that object for the widget. If the widget is in Metric mode, double-clicking a rectangle selects the resource associated with the metric and provides that resource to the receiving widget. Optionally, you can select a cell from the heat map and click the Show Details icon to see details about the cell.

Reset Interaction

Returns the widget to its initial configured state and undoes any interactions selected in a providing widget.

Reset Zoom

Resets the heat map display to fit in the available space.

Heatmap Configuration Drop-down

Select from a list of predefined Heat Maps.

Table 2. Heat Map Widget Configuration Options

Option

Description

Title

Enter a custom title that identifies this widget from other instances that are based on the same widget template.

Refresh Content

Enable or disable the automatic refreshing of the data in this widget.

Refresh Interval

If you enable the Refresh Content option, specify how often to refresh the data in this widget .

Configurations

List of saved Heat Map configuration options. You can create new configuration and save it in the list. From the options on the right, you can also delete, clone, and reorder the configurations.

Name

Name of the widget.

Group by

First-level grouping of the objects in the heat map.

Then by

Second-level grouping of the objects in the heat map.

Relational Grouping

After you select the Group by and Then by objects, select the Relational Grouping check box to reorganize the grouping of the objects, and to relate the objects selected in the Group by text box with the objects selected in the Then by text box.

Mode

General mode

The widget shows a colored rectangle for each selected resource. The size of the rectangle indicates the value of one selected attribute. The color of the rectangle indicates the value of another selected attribute.

Instance mode

Each rectangle represents a single instance of the selected metric for a resource. A resource can have multiple instances of the same metric. The rectangles are all the same size. The color of the rectangles varies based on the instance value. You can use instance mode only if you select a single resource kind.

Object Type

Object that is the basis for the widget data.

Size by

An attribute to set the size of the rectangle for each resource.

Resources that have higher values for the Size By attribute have larger areas of the widget display. You can also select fixed-size rectangles. In most cases, the attribute lists include only metrics that vRealize Operations Manager generates. If you select a resource kind, the list shows all of the attributes that are defined for the resource kind.

Color by

An attribute to set the color of the rectangle for each resource.

Solid Coloring

Select this option to use solid colors instead of a color gradient. By default, the widget assigns red color for high value, brown color for intermediate value and green color for low value. Click the color box to set a different color for the values. You can add up to seven color thresholds by clicking on color range

Color

Shows the color range for high, intermediate and low values. You can set each color and type minimum and maximum color values in the Min Value and Max Value text boxes. By default, green indicates a low value and red indicates the high end of the value range. You can change the high and low values to any color and set the color to use for the midpoint of the range. You can also set the values to use for either end of the color range, or let vRealize Operations Manager define the colors based on the range of values for the attribute.

If you leave the text boxes blank, vRealize Operations Manager maps the highest and lowest values for the Color By metric to the end colors. If you set a minimum or maximum value, any metric at or beyond that value appears in the end color.

Filter

The widget shows information based on filter conditions.