Administrator's Guide

Planning the Fabric
Hyper Messaging Protocol (HMP)
Chapter 2 33
HMP Supported Configurations
Multiple HMP HyperFabric configurations are supported to match the
performance, cost and scaling requirements of each installation.
In the section, “Configuration Parameters” on page 29, the maximum
limits for HMP enabled HyperFabric hardware configurations were
outlined. This section discusses the HMP enabled HyperFabric
configurations that HP supports. These recommended configurations
offer an optimal mix of performance and availability for a variety of
operating environments.
There are many variables that can impact HyperFabric performance. If
you are considering a configuration that is beyond the scope of the
following HP supported configurations, contact your HP representative.
Point-to-Point Configuration
You can interconnect large servers like the HP Superdome to run Oracle
RAC 9i and enterprise resource planning applications. These
applications are typically consolidated on large servers.
Point-to-point connections between servers support the performance
benefits of HMP without investing in HyperFabric switches. This is a
good solution in small configurations where the benefits of a switched
HyperFabric cluster might not be required (see configuration A in
Figure 2-5).
If an HMP application is running over HyperFabric and another node or
adapter is added to either of the nodes, then it is necessary to also add a
HyperFabric switch to the cluster (see configuration B in Figure 2-5).