The URL http://<server_name>:<port>/arcgis does not work for ArcGIS Spatial Data Server sites using IBM WebSphere Application Server. Consequently, the Home link in the breadcrumbs on the REST endpoint sites does not work with either.
WebSphere Application Server was not redirecting the URI as expected. This behavior can by changed by setting the web container custom property "<a href="http://com.ibm.ws" target="_blank">com.ibm.ws</a>.webcontainer.redirectcontextroot" as described in APAR PK27974:<a href="http://www-01.ibm.com/support/docview.wss?uid=swg1PK27974" target="_blank">http://www-01.ibm.com/support/docview.wss?uid=swg1PK27974</a>We have confirmed this behavior is corrected with the custom property on WebSphere Application Server v8.0. Please complete the following steps to apply this custom property on WebSphere Application Server v8.0:To specify web container custom properties:1. In the administrative console click Servers > Server Types > WebSphere application servers > server_name > Web Container Settings > Web container .2. Under Additional Properties select Custom Properties.3. On the Custom Properties page, click New.4. On the settings page, enter: "<a href="http://com.ibm.ws" target="_blank">com.ibm.ws</a>.webcontainer.redirectcontextroot" in the Name field and "true" in the Value field.5. Click Apply or OK.6. Click Save on the console task bar to save your configuration changes.7. Restart the server.8. Retest the applicationIf the configuration is not done as noted above, then in order to view the REST Endpoint URL you have to indicate another valid breadcrumb after arcgis.<a href="http://rwest_sds1:8080/arcgis/admin" target="_blank">http://rwest_sds1:8080/arcgis/admin</a><a href="http://rwest_sds1:8080/arcgis/rest" target="_blank">http://rwest_sds1:8080/arcgis/rest</a>When you create a Service to Publish to Java SDS in Desktop, you will need to add "admin" at the end. E.g., http://<server>:<port>/arcgis/admin