About this task
Service that is applied to the WebSphere Application Server for
z/OS product data sets and product file systems occasionally requires corresponding
changes to be made to the configuration file systems for existing application
serving environments that configure at a lower service level. Most of these
"post-maintenance" or "post-install" updates can be performed automatically.
This is done by the post-installer.
The WebSphere Application Server
for z/OS post-installer is a set of scripts that can be used to:
- Automatically detect and apply post-PTF service
- Back out (uninstall) service from the configuration HFS when returning
to an older service level
The post-install process is performed at the node level and must run
against each node's WebSphere Application Server home directory after maintenance
is applied to the product data sets and HFS, and before the node is started.
For more information about the post-installer and how to use it to apply
or back out service to the configuration HFS, see the following references: