Customizing a viewlet
In addition to choosing the content and layout for a view, you can also customize many of the individual viewlets. A customizable viewlet has a customize icon in the upper right corner; the icon appears in Figure 3–6.
Figure 3–6: Customize Viewlet icon
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If you click the Customize Viewlet icon on a Memory viewlet, for example, the Customize Viewlet page shown in Figure 3–7 appears.
Figure 3–7: Customizing a viewlet
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To customize the viewlet:
- Select only the viewlet components you want to appear (and clear any components you do not want to include). For the Memory viewlet shown in Figure 3–7, you can choose the following options:
- Resource name in title — The name of the resource.
- Resource status in title — The status of the resource.
- Tabular data — Data displayed in a table.
- Graph — Whether to display a graph or not.
A typical viewlet display shows the data in three different sections: tabular, graph, and legend. If you choose to see the data in a vertical format, the sections stack on top of one another instead of being positioned side by side. This results in a narrower but taller display of the viewlet contents. If column width is of concern to you, choose the Vertical option. If you want the sections to display side by side, choose the Horizontal option.- Layout — The way the viewlet data appears.
- Select the following graph properties:
If the data you want to display does not make sense in a particular family, the option does not appear. Historical graphs always show multiple points in time.- Family — Current, meter, or historical. Current and meter graphs produce only the most current view of the polling sample, if the data being presented is sensible in that format. Typically, a current graph is used to display multiple values, whereas a meter graph displays only one datum.
- Size — Tiny, small, medium, large, or very large.
For details about the graph cache, see the Installation and Configuration Guide. If the background for the Max display time field is gray, the option is not applicable for the graph type selected.- Max display time — Available only for historical reports. Choose the display time from the dropdown list; the maximum time possible depends on the graph cache. Note that the higher you set the maximum display time, the more processing time will be required to produce the data; and the fewer details will be visually evident.
- Set the following properties on or off:
- Legend — An explanation of what the colors in the graph represent.
- Pinup — Whether you can create a separate pinup version of the graph.
- Anti aliasing — Further processing on an image to make image's lines cleaner and smoother. If image quality is important, turn this option on. However, if image quality is not of concern, turn the option off, since the anti aliasing process takes both CPU time and disk space.
- Average — Whether Fathom does averaging of data values. Fathom takes the data and computes weighted averages to reduce the number of data points and create more meaningful data points for the graph image.
- Grid — A grid to help you examine data more closely.
- Threshold — Whether rule thresholds, if available and currently in use, are displayed on the graphs.
- Select the Dimensionality by choosing 2D or 3D.
- Click Save when you finish choosing the components and properties.
An example of a customized Memory viewlet appears in Figure 3–8.
Figure 3–8: Customized viewlet
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The customizing options that a viewlet provides depend on the particular viewlet and apply only to the selected viewlet in a single view. You can display different options in different views.
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