Normally, all HiRDB/Parallel Server units must be on the same platform; however, you can configure a heterogeneous system for HiRDB/Parallel Server in which different platforms coexist, as long as the following conditions are met:

• All front-end servers run on the same platform (Windows Server 2003 (IPF) or Windows (x64)).
• All back-end and dictionary servers run on the same platform (Windows Server 2003 (IPF) or Windows (x64)).
• The system manager runs on the same platform as the front-end or back-end servers

Figure 9-13 shows an example of a heterogeneous system configuration.

Figure 9-13 Example of heterogeneous system configuration for HiRDB/Parallel Server

Explanation:

• This HiRDB/Parallel Server consists of three server machines. In this example, server machines A and B serve as application servers and server machine C serves as a database server.
• The platform of server machines A and B is Windows (x64), and the platform of server machine C is Windows Server 2003 (IPF).

Note:

If a heterogeneous system configuration is used, you must abide by the following rule when you move a back-end server or a unit containing a back-end server.

• When moving a back-end server or a unit containing a back-end server, the platform of the server machine before and after moving must be the same.
  You should not move the server to a different platform.