> # Viewing Inventory Information for Switches

> 1. From the menu bar, choose Inventory > Switches.

> You see the Switches window displaying a list of all the switches for a selected Scope.

> 2. You can also view the following information.
> 3. In the Name column, select a switch to display the Switch Dashboard. For more information about switch dashboard, see the Network section.
> 4. Use the drop-down to view All, Warning or Unmanaged switches.
> 5. In the Health column, the switch health is calculated by the capacity manager based on the following formula in the server.properties file.

> The function to implement is

> # calculate(x, x1, y, y1, z)

> # @param x : Total number of modules

> # @param x1: Total number of modules in warning

> # @param y: Total number of switch ports

> # @param y1: Total number of switch ports in warning

> # @param z: Total number of events with severity of warning or above

> 6. The value in the Health column is calculated based on the following default equation.

> ((x-x1)*1.0/x) *0.4 + ((y-y1)*1.0/y)*0.3 + ((z*1.0/1000>=1) ? 0: ((1000-z)*1.0/1000)*0.3).

> In the above formula, the switch health value is calculated based on the following:

> - Percentage of Warning Modules (Contributes 40% of the total health).
> - Percentage of Warning Ports (Contributes 30% of the total health)
> - Percentage of events with severity of Warning or above (Contributes 30% of the total health. If there are more than 1000 warning events, the event health value is 0).

> You may also have your own health calculation formula by implementing the common interface class:com.cisco.dcbu.sm.common.rif.HealthCalculatorRif. Add the.jar file to the DCNM server and modify the health.calculator property to point to the class name you have created.

> The default Java class is defined as:health.calculator=com.cisco.dcbu.sm.common.util.HealthCalculator.

> - Capacity Manager calculates health only for the license switches. If the health column does not display a value, the switch either does not have a license or it has missed the capacity manager’s daily cycle.
> - If the switch is unlicensed, in the DCNM License column click Unlicensed. The Admin>License window appears which allows you to assign a license to the user.
> - The capacity manager runs two hours after the DCNM server starts. So, if you discover a device after two hours of the DCNM start time, the health will be calculated 24 hours after this DCNM start time

> Copyright 2010-2013, Cisco Systems, Inc. All rights reserved.