MyXenApp

To add the second StoreFront server for load balancing with an existing StoreFront server, we need to create an Authorization code from the first server.

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Enter the Authorization code to the second server.

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Once the two StoreFront servers has been grouped, we can load balance these two servers with the NetScaler Gateway.
Open the NetScaler console and got to Traffic Management and expand Load Balancing. Click Servers and Add.

Give the two StoreFront servers host name and IP address and select Enable after adding.

Then we need to create a Monitor to monitor the services in the StoreFront servers.

Choose a name for the Monitor and select StoreFront as the Type. Select StoreFront Account Service.

​Then we need to create a Service Group to have a single health monitor to be attached to both servers.

In the Members tab select Server Based and add the servers.

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In the Monitors tab and choose the previously created StoreFront monitor and click Add

​In the Advanaced tab select Override Global, uncheck Use Source IP.
Click Client IP Header and enter in X-Forwarded-For.

​In the SSL Settings tab select the SSL certificate and click Create.

​Select Virtual Servers from Load Balancing and Add a virtual server. Give the name and IP address.

Provide SSL for protocol and 443 for port.

​In the Sevvice Group tab select and activate the previously created StoreFront Service Group.

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​​​In the Method and Persistence tab, give COOKIEINSERT for Persistence.

​​Create SSL certificate for the Virtual Servers to complete the process.

In XenApp 6.5 we have 2 roles for the servers, a Worker role (session host only) and a Controller role. The default role for a XenApp server is a Controller role. The controller server is responsible for farm management tasks and the task of the Worker role is to host user sessions.

A farm requires at least one Controller, which handles the XML broker and Zone Data Collector roles. A Worker cannot perform the role of a Data Collector and cannot participate in elections.

There are two methods to detect if a XenApp server is a Worker or a Controller.

Method 1.

1. Open the AppCenter Console.     2. Navigate to the Servers section.     3. Click the server you want to check.     4. In the information tab check for the Session-host Mode field.     – if Disabled – the server is a controller     – if Enabled – the server is a worker

Method 2:

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Citrix\IMA\RUNTIME

If the DWORD value for WorkerRole is 0 then the server is a Controller and if the value is 1 then the server is a Worker.

How to switch between a Worker mode or a Controller mode.

We can switch between a Worker or Controller with the XenApp Server Role Manager:

To switch between a worker or a controller, complete the following procedure:

1. Start the XenApp Server Role Manager.    2. Remove the server from the farm.    3. Click Configure.    4. Click Add this server to an existing server farm.    5. Select the appropriate database and shadowing options.    6. In the Data Collection Option, click Enable Controller and Session-host modes.    7. Session-host only indicates that the server is a Worker