Supported installation topologies

You can install InfoSphere® CDC components on the same computer, or you can design a topology that includes several different computers. The term computers refers to separate physical servers, logical partition (LPARs), or virtual machines.

Figure 1 illustrates a topology with components that are installed as separately as possible on different computers. In this topology, InfoSphere CDC for InfoSphere DataStage® is not installed on the same computer as InfoSphere DataStage. Although this topology illustrates what is possible, it has limitations because the auto-start feature is unavailable, and InfoSphere DataStage jobs must be started manually.

Figure 1. Topology with separate components installed on many different computers

The diagram is described by the surrounding text.

In Figure 1, the components are installed on the following computers. Unless otherwise noted, solid black arrows in the diagram represent TCP/IP connections. Solid gray lines represent database connections. Solid gray arrows represent InfoSphere DataStage links.

Computer A: InfoSphere CDC Management Console
Computer B: InfoSphere DataStage and QualityStage® Designer client
InfoSphere DataStage and QualityStage Director client
Computer C: InfoSphere CDC Access Server
Computer D: InfoSphere CDC for the source database
Source database
Computer E: InfoSphere CDC for InfoSphere DataStage
Computer F: InfoSphere DataStage
Computer G: Target database

Figure 2 illustrates a topology with components that are installed on shared computers. The auto-start feature is available, and the coexistence of client components on the same computer simplifies subscription and job monitoring.

Figure 2. Topology with components installed on shared computers

In Figure 2, the components are installed on the following computers. Unless otherwise noted, solid black arrows in the diagram represent TCP/IP connections. Solid gray lines represent database connections. Solid gray arrows represent InfoSphere DataStage links.

Computer A

InfoSphere CDC Management Console

InfoSphere DataStage and QualityStage Designer client

InfoSphere DataStage and QualityStage Director client

Computer B

InfoSphere CDC Access Server

Computer C

InfoSphere CDC for the source database

Source database

Computer D

InfoSphere CDC for InfoSphere DataStage

InfoSphere DataStage

Computer E

Target database

If required, you can install all the software on a single computer.