> #### Adding or trimming AppServers

> This section describes how to add and trim AppServers.

> To initiate an AppSever add and trim request:

> 1. Display the AppServer main page for the broker you want to start. See the "Accessing OpenEdge resource information" section for the detailed steps.
> 2. Click Server Pool Control in the Command and control section to display the Server Pool Control page as shown:

> 3. From the drop-down list box, select Add or Trim.
> 4. In the server(s) field, enter the number of servers you want to add or trim. The value you enter must be a positive integer.
> When you initiate an add or trim request, Fathom consults two sets of initial configuration to determine if and how it can honor either request type:

> - The number of AppServers for which you are licensed.
> - The broker property configuration settings stored in the `ubroker.properties` file.
> See the "Server pool data initial configuration section" section for details about these initial configuration values.

> 5. Select Submit. Depending on the changes you make and Fathom's capability to implement them, you might notice changes to the numeric values displayed in the Servers state table. See the "Servers state section" section for more information.
> Note: Any time you either add or trim AppServers, it is recommended that you refresh the management console to ensure that you are not viewing stale data.

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