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Chapter 14
Setting up FactoryTalk system availability

Information network failures, install a redundant Ethernet network
with a backup domain controller, network cables, and network
interface cards.

Host computer hardware failures, provide backup computers to host
application software such as FactoryTalk View SE.

FactoryTalk software failures, set up redundant FactoryTalk
View SE and RSLinx Enterprise application servers.
Planning the layout of a redundant system
The servers you can use in a FactoryTalk View SE network distributed
application are separate entities, which means they can be hosted on any
computer on the network.
However, when designing a redundant control system, you should keep in
mind the system requirements that apply to different types of servers.
For example, to support FactoryTalk Network Directory availability, it is
recommended that you run the directory server on a computer that you plan
to keep running.
This could be the same computer used to host a FactoryTalk View SE Server,
or a Rockwell Automation Device Server (RSLinx Enterprise).
Note: Do not run the FactoryTalk Network Directory on the same
computer as a Windows domain controller.
Example: An application with two redundant HMI server pairs
In its simplest form, a redundant FactoryTalk View SE application might
consist of one pair of redundant FactoryTalk View SE Servers (also called
HMI servers), and one pair of redundant RSLinx Enterprise servers.
In this example, two redundant server computer pairs host primary and
secondary HMI servers, and RSLinx Enterprise data servers.
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Rockwell Automation Publication VIEWSE-UM006J-EN-E