You must edit the mcs-config.xml file.
<!--
<local-repository>
<jdbc-repository>
<connection-pool
maximum="20"
poll-interval="3600000"
keep-alive="false"
>
<anonymous-data-source
user="MCS_db_username"
password="MCS_db_password"
>
<mcs-database
vendor="mssql"
host="localhost"
port="1433"
source="mcs"/>
</anonymous-data-source>
</connection-pool>
</jdbc-repository>
</local-repository>
-->
<jndi-configuration>
<initial-context name="mcsContext">
</initial-context>
</jndi-configuration>
<local-repository>
<jdbc-repository>
<jndi-data-source
initial-context="mcsContext"
name="datasource-jndi-name"/>
</jdbc-repository>
</local-repository>
. wp_profile_root/bin/setupCmdLine.sh
wp_profile_root\bin\setupCmdLine
./ConfigEngine.sh init mcs-update-config
ConfigEngine init mcs-update-config
./ConfigEngine.sh init mcs-update-config
-DPortalAdminPwd=WP_admin_password_value
-DWasPassword=WAS_admin_password_value
ConfigEngine init mcs-update-config
-DPortalAdminPwd=WP_admin_password_value
-DWasPassword=WAS_admin_password_value
wp_profile_root/bin/stopServer.sh server_name -username WAS_admin -password WAS_admin_password_value
wp_profile_root/bin/startServer.sh server_name
wp_profile_root\bin\stopServer server_name -username WAS_admin -password WAS_admin_password_value
wp_profile_root\bin\startServer server_name
where server_name is the name of the WebSphere Application Server instance (for example, WebSphere_Portal).