You can migrate a Web server from supporting an earlier version of WebSphere® Application Server to support the current version.
Versions 5.1.x, 6.x, and 7.0 of WebSphere Application Server use the same HTTP transport plug-in binary module. If the Web server configuration file contains WebSphere Application Server Version 5.1.x or Version 6.x plug-in information, you must manually remove it. Otherwise when the HTTP Server attempts to start the second Version 7.0 plug-in binary module, there is an error. The error indicates that the module is already loaded.
Version 5.1.x installation: Alias /WSsamples "c:\Program Files\WebSphere\AppServer\WSsamples" Alias /IBMWebAS/ "c:\Program Files\WebSphere\AppServer\web\" Version 6.x installation: Alias /WSsamples "c:\Program Files\WebSphere\AppServer\WSsamples" Alias /IBMWebAS/ "c:\Program Files\WebSphere\AppServer\web\" Version 7.0 installation: Alias /WSsamples "c:\Program Files\WebSphere\AppServer\WSsamples" Alias /IBMWebAS/ "c:\Program Files\WebSphere\AppServer\web\"
Use the following steps to generate a Web server plug-in configuration file that is based on topology. This method was used for generated plug-in configuration files in previous releases.
Read the "GenPluginCfg command" article in the information center for more information.
Read the "Installing Web server plug-ins" article in the information center for more information.
You should migrate to the application-centric approach that uses the Plug-ins installation wizard. The Plug-ins installation wizard generates scripts that can be used to create the Web server definition for that Web server and to map all of the applications that are currently deployed to the newly created Web server definition.
Be aware that regenerating the plug-in configuration can overwrite manual configuration changes that you might want to preserve.
Read the "Setting up a local Web server" article or the "Setting up a remote Web server" article in the information center for more information.
Read the "Communicating with Web servers" and "Web server plug-in configuration properties" articles in the information center for more information.
Read the "Installing Web server plug-ins" article in the information center for more information.
Read the "Communicating with Web servers" and "Web server plug-in configuration properties" articles in the information center for more information.
To generate mapping to all applications that are installed at Web server creation, use the mapping ALL option in the wizard.
$AdminTask createWebServer -interactiveand reply ALL to the mapping applications prompt.
This script maps all installed applications to the Web server. The script updates all of the information related to the Web server plug-in such as the locations of the plug-in installation root, log file, configuration file, and key stores on the Web server system. However, the script does not update other properties related to the Web server if the Web server definition already exists.
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