Ha Configuration Options; Ha Requirements; Communication Between Physical Servers; Figure 6: Simple Ha Management System Configuration - Juniper NETWORK AND SECURITY MANAGER 2010.4 - INSTALLATION GUIDE REV1 Installation Manual

Network and Security Manager Installation Guide

HA Configuration Options

HA Requirements

Communication Between Physical Servers

72
You have two main options for installing NSM in a high availability configuration:
Install and configure the management system in an HA cluster on two server machines:
the primary management system with the Device Server and GUI Server on the same
machine, and a secondary management system with the Device Server and GUI Server
together on another machine.
Install and configure the management system in an HA cluster on four server machines:
the primary management system with the Device Server and GUI Server on separate
machines and a secondary management system with the Device Server and GUI Server
on separate machines.
You can also install and configure HA clusters in either scenario with access to a shared
disk.
Consider the following system requirements if you are planning on installing the
management system for high availability:
Both the primary and secondary management servers must share at least two network
connections: there must be at least one network connection for data, and at least one
network connection for heartbeat communication.
The primary and secondary servers can be geographically separate.
Figure 6 on page 72 shows the physical setup of the primary and secondary management
systems in a simple HA configuration.

Figure 6: Simple HA Management System Configuration

This section discusses the following aspects of communication between the physical
servers:
Inter-server Communications on page 73
HA Server on page 73
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