Relationships Among the Parts of the HPL

Figure 3 shows the relationships among the parts of the HPL. The ipload utility connects to the database server to populate the onpload database. The ipload utility controls the onpload utility, which uses multithreaded architecture to make multiple connections to the database server and multiple I/O connections to tapes, files, or pipes.

Figure 3. Relationships Among the Parts of the HPL

The information to the right of the vertical line in Figure 3 shows onpload loading or unloading data with no interaction from ipload.