Installing 

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IBM® WebSphere® Portal Enable for z/OS® provides flexible deployment options ranging from proof-of-concept where you can examine and test functionality to a highly available and scalable production environment. Review the planning information to learn more about hardware and software requirements, high availability, scalability, supported topologies, and much more. Select your operating system and then select the installation pattern that most reflects your business needs.
Attention: After installing WebSphere Portal and if you plan to use Mashup integration, you will need to run the deploy-portal-mashup-ui task listed in the Mashup integration -> Configuring your portal and mashups -> Enabling mashup integration in your portal topic.

Planning to install WebSphere Portal
Before installing IBM WebSphere Portal Enable for z/OS in a production environment, you need to assess your hardware and software needs, possible database configurations, security options, and LDAP server options. Skipping this important step can lead to unexpected results and costly delays.

Using the Customization Dialog to configure WebSphere Portal using WebSphere Application Server
Customization is the process during which you make your installed IBM WebSphere Portal Enable for z/OS code work for you. This topic outlines the steps you follow to configure your WebSphere Portal using the Customization Dialog. Some of these tasks are performed during installation, as directed in the documentation, and other tasks are performed later when configuring the portal.

Installing on z/OS
IBM WebSphere Portal Enable for z/OS provides flexible deployment options ranging from proof-of-concept where you can examine and test functionality to a highly available and scalable production environment.

Configuration properties reference
For your convenience the properties files used to configure IBM WebSphere Portal Enable for z/OS are included in the product documentation. Information specified in the properties files is used to configure databases, LDAP integration, security, including external security managers, and more.

Uninstalling WebSphere Portal
Uninstalling IBM WebSphere Portal Enable for z/OS is a multiple step process and the method you use is dependent upon your configuration. Removing WebSphere Portal in a single-server configuration is different from removing WebSphere Portal from a cluster. Manual uninstallation instruction are provided for a single-server configuration in case of an error situation.

Applying fixes
Periodically fix packs are released to integrate product code fixes. Between fix pack releases, interim fixes may be recommended or required to ensure product reliability and stability.