Test environment
The test environment consisted of an IBM® System z® and an IBM xSeries® server as the client.
The IBM System z contained a z/VM® LPAR with seven guests. The network was
split into three parts:
- The xSeries and the IBM System z systems were connected in the unsecure external zone through an Extreme Mariner Switch. The IBM xSeries system contained the WebSphere® Studio Workload Simulator, which drove the Trade clients and generated the workload.
- The DMZ contained one guest with the WebSphere Caching Proxy Server protected from the external zone with a firewall (Firewall 2) running in a separate guest. It is implemented as a z/VM guest LAN. For the test scenario where the Caching Proxy Server and the WebSphere Proxy Server are bypassed, the Apache Web Server was moved to the DMZ. This was for testing purposes and is not recommended for production environments.
- The trusted internal zone, the second z/VM guest LAN, is protected with another guest
with a second firewall (Firewall 1) and contains one guest for each
of the following servers:
- The Apache Web Server
- The WebSphere Application Server Cluster (four guests)
- The DB2® Universal Database (DB2 UDB) database server
