By linking HiRDB/Single Servers to OpenTP1, processing at multiple HiRDB/Single Servers can be executed centrally. In such a case, the database is partitioned and allocated using a method such as key range partitioning, and OpenTP1 running on each server machine allocates processing to each HiRDB/Single Server. In this way, large-scale transaction processing can be implemented. Linkage with OpenTP1 is the recommended means of integrating multiple HiRDB/Single Servers. Figure 2-8 shows the linkage between HiRDB/Single Servers and OpenTP1.

Figure 2-8 Linkage between HiRDB/Single Servers and OpenTp1

Explanation

Each of the three server machines is provided with a HiRDB/Single Server and OpenTP1; transaction processing is allocated to each of the three HiRDB/Single Servers.

By linking a HiRDB/Parallel Server to OpenTP1, high-performance, high-load transaction processing can be achieved. Figure 2-9 shows the linkage between a HiRDB/Parallel Server and OpenTP1.

Figure 2-9 Linkage between HiRDB/Parallel Server and OpenTP1

Explanation

OpenTP1 is provided at the server machine where the system manager and front-end server are installed in order to control transaction processing.

Figure 2-10 shows linkage to multiple OpenTP1.

Figure 2-10 Linkage to multiple OpenTP1

Note

The OLTP identifier (PDTMID in the client environment definition) of each OpenTP1 must be unique.