WAS v8.0 > Install the application serving environment > Distributed operating systems
Plan the WAS product installation
This article introduces common installation scenarios for a WAS product. Determine what components to use for your web serving environment. The installation scenarios can help you to understand the capabilities of your WAS product. Knowing what you can do with the product might influence how you install the product and other components.
The installation scenarios use topology diagrams and descriptions to show what components to install for a given topology. The scenarios also have installation steps that link to specific procedures for installing a component, running a command, or using a tool.
Review the scenarios to determine which topology best fits your needs. The diagrams and their accompanying procedures can serve as a roadmap for installing a similar topology.
Procedure
- Review the installation scenarios for the WAS Network Deployment product, as described in Plan to install WAS.
- Review the installation scenarios for the Web Server Plug-ins for WAS as described in the article "Selecting a web server topology diagram and roadmap".
- Review the installation scenarios Application Client for IBM WAS as described in Plan to install the Application Client for IBM WAS.
- Optional: Review interoperability and coexistence scenarios to know what is possible with the current version.
WAS can interoperate with your other e-business systems, including other versions of WAS. Interoperability provides a communication mechanism for WAS nodes that are at different versions, running on separate machines. Coexistence describes multiple versions or instances running on the same machine at the same time.
Interoperability support enhances migration scenarios with more configuration options. Interoperating is often more convenient or practical during the migration of a configuration from an earlier WAS version to a later one. Some machines can have the earlier product version and other machines can have the later version. An environment of machines and application components at different software version levels can involve both interoperability and coexistence.
It is often impractical, or even physically impossible, to migrate all of the machines and applications within an enterprise at the same time. Understanding multiversion interoperability and coexistence is therefore an essential part of a migration between version levels. See the migration documentation for more information.
- Optional: Consider performance when designing your network as described in the documentation for the performance topologies and Queing network.
Results
Following this procedure results in reviewing installation scenarios to identify specific steps to follow when installing more than one component.
What to do next
After determining an appropriate installation scenario, install the necessary components and configure the products for the system that you selected.
Related
Plan to install WAS
Plan to install the Application Client for IBM WAS
Install the product
Task overview: Installing