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System requirements for Citrix XenApp
This topic gives information about licensing issues, and the software and hardware that you need to use WebSphere® Message Broker in a Citrix XenApp environment.
- Operating system
The required operating system is Windows Server. See WebSphere Message Broker Requirements for supported versions. Client versions of Windows cannot be used because Citrix XenApp requires Terminal Server, which is not available on client versions of Windows.
The recommended version of Windows Server is Enterprise Edition. You can also use Windows Server Standard Edition, but you might need to reduce the maximum heap size for the Java™ virtual machine that is used by the WebSphere Message Broker Toolkit.
- Software prerequisites
Citrix XenApp (previously known as Citrix Presentation Server 4.0 or 4.5) and its prerequisites must be installed on the Windows server.
- Hardware prerequisites
The server must have enough CPU, RAM, disk space, and network bandwidth for each concurrent user. Performance depends on the tasks that are being performed, and on the hardware, software and networking setup. As a guide, the server should have a minimum of 1 GB of RAM per concurrent user and at least 4 GB of RAM in total. If the tasks require frequent disk access, it should help performance to have a separate physical disk for each user so that they do not slow each other down.
- Licensing
Any number of users can use the WebSphere Message Broker Toolkit through Citrix, provided they all connect only to a WebSphere Message Broker that has a valid license.