ClearPath IX Systems Installation and Configuration Guide

• Configure a resilient 2200 node partition.
Introduction and Installation Overview
1.3. Overview of Multinode Installation and
Configuration Procedures
A basic (minimum) ClearPath IX server includes the following nodes:
• A single 2200 node running a single instance of OS 2200
• A single Intel node running a single instance of either Windows NT or UnixWare
These nodes are connected by a private interconnect (an FDDI LAN), and they
communicate with each other using reserved hostnames and addresses (see Appendix B).
The following configurations beyond the basic configuration are supported:
• Resilient 2200 nodes (1.3.1)
• Single or multiple OS 2200 nodes with multiple Intel nodes (1.3.2)
1.3.1. Resilient 2200 Nodes
A single 2200 node can be partitioned into two OS 2200 nodes for resiliency. The OS 2200
nodes operate independently of each other, but only one at a time connects to the private
interconnect and interoperates with the Intel node. The second node backs up the first
and interoperates with the Intel node should the first node lose its connection for some
reason. See 16.8 for detailed information.
1.3.2. Single or Multiple OS 2200 Nodes with Multiple Intel Nodes
In addition to the basic configurations, a single 2200 node, configured as one OS 2200 node,
can connect to and interoperate with up to four Intel nodes (Figure 1–3).
Also, a single 2200 node can be configured as two OS 2200 nodes, and each of those nodes
can connect to the four possible Intel nodes (must be the same set of Intel nodes) (Figure
1–4).
Note: For simplicity, only two Intel nodes are shown in Figure 1–3 and Figure 1–4.
In either multinode configuration, each OS 2200 node connects to and interoperates with
all of the other nodes through the private interconnect using the reserved hostnames and
IP addresses listed in Appendix B.
Each Intel node can be a Windows 2000, Windows NT, or UnixWare node in any
combination. For example, all four Intel nodes could be UnixWare nodes, they all could be
Windows NT nodes, or they could be any combination of the two (for example, one
UnixWare node and three Windows NT nodes).
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