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 (Linux (IPF) or Linux (EM64T)).
- All back-end and dictionary servers run on the same platform (Linux (IPF) or Linux (EM64T)).
- The system manager runs on the same platform as the front-end or back-end servers
Figure 10-13 shows an example of a heterogeneous system configuration.
Figure 10-13 Example of heterogeneous system configuration for HiRDB/Parallel Server
![[Figure]](figure/zu090140.gif)
- 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 Linux (EM64T), and the platform of server machine C is Linux (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.