Note the green box next to each dashboard element name in Figure 1. This box indicates that the server sourcing the information is functioning normally. A yellow box indicates that server operation is less than optimum. A red box indicates that the server is down. These indicators are the same as for the server health on the Manage Servers page in the regular web UI.

Graphed lines and stacked areas in the charts follow a standard color and visual coding so that you can immediately determine key diagnostic indicators at a glance. The charts use the following color and textural indicators:

• High alerts or warnings —Lines or areas in red, with a hatched texture.
• All other indicators —Lines or areas in various other colors distinguish the data elements. The charts do not use green or yellow.

If Magnified Chart is the selected Chart Link, you can magnify a chart in a separate window by clicking the chart. In magnified chart view, you can choose an alternative chart type from the one that comes up initially (see Other Chart Types).

Note	Automatic refresh is turned off for magnified charts. To get the most recent data, click the Refresh icon next to the word Dashboard at the top left of the page.

To convert a chart to a table, see the Displaying Charts as Tables section. You cannot convert tables to a graphic chart format.

Each chart initially includes a color-coded legend. To turn off the legend display on the main dashboard page, see the Displaying or Hiding Chart Legends section. Removing the legend renders the graphic chart size relatively larger, which can be helpful if you have many charts displayed. You cannot remove legends in magnified views.

Dashboard elements rendered as tables have data displayed in rows and columns. The following dashboard elements are preset to consist of (or include) tables:

• System Metrics
• DHCP DNS Updates
• DHCP Address Current Utilization
• DHCP General Indicators
• DNS General Indicators
• Caching DNS General Indicators

Note	If you view a table in Expert mode, additional data might appear.

Dashboard elements rendered as line charts can include one or more lines plotted against the x and y axes. The three types of line charts are described in the following table.

Tip	To get the raw data for a chart that shows delta or rate data, enter Expert mode, set the Chart Link to Data Table, then click the chart. The Raw Data table is below the Chart Data table.

Dashboard elements rendered as stacked area charts have multiple related metrics plotted as trend charts, but stacked one on top of the other, so that the highest point represents a cumulative value. The values are independently shaded in contrasting colors. (See the image below for an example of the DHCP Server Request Activity chart shown in Figure 1 rendered as a stacked area chart.)

They are stacked in the order listed in the legend, the left-most legend item at the bottom of the stack and the right-most legend item at the top of the stack. The dashboard elements that are pre-set to stacked area charts are:

• DHCP Server Request Activity
• DHCP Server Response Activity
• DHCP Response Latency
• DNS Outbound Zone Transfers
• DNS Inbound Zone Transfers

The other chart types available for you to choose are:

• Line —One of the line charts described in Table 1.
• Stacked Area —Charts described in the Stacked Area Charts.
• Pie —Shows a single percentage pie chart of the data averaged over the time sampled.
• Bar —Multiple related current value metrics plotted side by side as groups of bars that show the actual data sampled.
• Stacked Bar —Addition total of the actual samples. This chart shows more distinct data points than the stacked area chart.

Tip	Each chart type shows the data in distinct ways and in different interpretations. You can decide which type best suits your needs.

You can open a help window for each dashboard element by clicking the title of the element.

Refresh each display so that it picks up the most recent polling by clicking the Refresh icon.

You can set how often to poll for data. Click the Dashboard Settings icon in the upper-right corner of the dashboard display. There are four options to set the polling interval of the cached data, which polls the protocol servers for updates. (See the image below)

You can set the cached data polling (hence, automatic refresh) interval to:

• Disabled— Does not poll, therefore does not automatically refresh the data.
• Slow— Refreshes the data every 30 seconds.
• Medium— Refreshes the data every 20 seconds.
• Fast (the preset value)— Refreshes the data every 10 seconds.

You can choose to display a graphic chart as a table when you magnify the chart by clicking it. At the middle of the top of the dashboard display are the controls for the chart links (see the image below)

Click the Data Table radio button. When you click the chart itself, it opens as a table. The preset display format is Magnified Chart.

You can dump the chart data to a comma-separated value (CSV) file (such as a spreadsheet) when you magnify the chart by clicking it. In the Chart Link controls at the top of the page (see the above image), click the CSV Export radio button, then click the chart. A Save As window appears, where you can specify the name and location of the CSV file.

You can include or exclude the color-coded legends for charts on the main dashboard page. You might want to remove the legends as you become more familiar with the data and track it on a slightly larger chart display. In the upper-right of the dashboard display are the controls for the legend display (see the image below). The preset value is Visible.

You can set the default chart types on the main dashboard view. You can customize the server charts in the dashboard to display only the specific chart types as default.

To set up default chart type, check the check box corresponding to the Metrics chart that you want to display and choose a chart type from the Type drop-down list. The default chart types are consistent and shared across different user sessions (see the image below).

Note	You can see either the CDNS or DNS Metrics in the Dashboard Settings > Chart Selection page based on the service configured on the server.

Tip

The order in which the dashboard elements appear in the Chart Selection list does not necessarily determine the order in which the elements will appear on the page. An algorithm that considers the available space determines the order and size in a grid layout. The layout might be different each time you submit the dashboard element selections. To change selections, check the check box next to the dashboard element that you want to display.

To change selections, check the check box next to the dashboard element that you want to display.

Specific group controls are available in the drop-down list, Chart Selection , at the top of the page. To:

• Uncheck all check boxes, choose None .
• Revert to the preset selections, choose Default . The preset dashboard elements for administrator roles supporting DHCP and DNS are:
  • Host Metrics: System Metrics
  • DHCP Metrics: General Indicators
  • DNS Metrics: General Indicators
• Select the DHCP metrics only, choose DHCP (see the "DHCP Metrics" section in Cisco Prime Network Registrar 8.3 DHCP User Guide).
• Select the DNS metrics only, choose DNS (see the "Dashboard and Authoritative DNS Metrics" section in Cisco Prime Network Registrar 8.3 Authoritative and Caching DNS User Guide).
• Select the DNS metrics only, choose CDNS (see the "Caching DNS Metrics" section in Cisco Prime Network Registrar 8.3 Authoritative and Caching DNS User Guide)
• Select all the dashboard elements, choose All .

Click Save at the bottom of the page to save your choices, or Cancel to cancel the changes.

The System Metrics dashboard element shows the free space on the disk volumes where the Cisco Prime Network Registrar logs and database directories are located, the date and time of the last server backup, and CPU and memory usage for the various servers. System metrics are available if you choose Host Metrics : System Metrics in the Chart Selection list.

The resulting table shows:

• Logs Volume —Current free space out of the total space on the disk drive where the logs directory is located, with the equivalent percentage of free space.
• Database Volume —Current free space out of the total space on the disk drive where the data directory is located, with the equivalent percentage of free space.
• Last Good Backup —Date and time when the last successful shadow database backup occurred (or Not Done if it did not yet occur) since the server agent was last started.
• CPU Utilization (in seconds), Memory Utilization (in kilobytes), and (in Expert mode only) the VM Utilization (in kilobytes) and Process ID (PID ) for the:
  • Cisco Prime Network Registrar server agent
  • CCM server
  • DNS server
  • DHCP server
  • Web server
  • Router Interface Configuration (RIC) server
  • SNMP server
  • DNS caching server