Administrator's Guide

Planning the Fabric

Hyper Messaging Protocol (HMP)

Chapter 2 35

Enterprise (Database) Conﬁguration

The HMP enterprise conﬁguration illustrated in Figure 2-6 is very

popular for running Oracle RAC 9i.

Superdomes or other large servers make up the Database Tier. Database

Tier nodes communicate with each other using HMP.

Application Tier nodes communicate with each other and to the

Database Tier using TCP/UDP/IP.

Figure 2-6 HMP Enterprise (Database) Conﬁguration, Single Connection

Between Nodes