Planning the product installation
Learn about hardware and software requirements, the available WebSphere® Application Server product offerings, and IBM Installation Manager.
Procedure
- To learn about IBM Installation Manager, see Installation Manager overview.
Installation Manager is a single installation program that can use remote or local software flat-file repositories to install, modify, or update new WebSphere Application Server products. It determines and shows available packages, including products, fix packs, and interim fixes; checks prerequisites and inter dependencies; and installs the selected packages. You also use Installation Manager to easily uninstall the packages that it installed.
IBM Installation Manager Version 1.8.5 or later is required to install the product.
- Create an implementation plan for installing WebSphere Application Server for z/OS as described in Creating implementation plans on z/OS.
- Optional: Review interoperability and coexistence scenarios to know what is possible with the current
version.
WebSphere Application Server can interoperate with your other e-business systems, including other versions of WebSphere Application Server. Interoperability provides a communication mechanism for WebSphere Application Server 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 WebSphere Application Server 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.
What to do next
For more information, see Preparing the z/OS operating system for installation.
Subtopics
- Installation Manager overview
IBM Installation Manager is a common installer for many IBM software products that you use to install WebSphere Application Server and other associated software. - WebSphere Application Server product offerings for supported operating systems
WebSphere Application Server Version 9.0 includes several related offerings. - Download options and locations for WebSphere Application Server
Find the parts you need to install WebSphere Application Server. The parts that are available from IBM Fix Central and IBM Passport Advantage® Online are listed on download documents. - Online product repositories for WebSphere Application Server offerings
You can use IBM Installation Manager to access online product repositories to install and maintain WebSphere Application Server offerings. Use the individual product repositories to access only the files for that product offering, or use the composite repositories to install or update multiple offerings from a single URL. - Creating implementation plans on z/OS
Create a plan for implementing your WebSphere Application Server for z/OS application serving environment - Considerations for large topologies
WebSphere Application Server cells larger than 50 WebSphere JVMs, application servers, node agents, deployment managers, or proxy servers must take the following factors into consideration as part of the planning and deployment process.


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