Rockwell Automation 1757-SWKIT3200 ProcessLogix R320.0 Installation and Upgrade Guide - Manual (Page 165)

1 Publication 1757-IN032B-EN-P - April 2001
Chapter
4
Additional Redundant Server Procedures
Completing ProcessLogix
Install on a Redundant
Server Pair and Adding
Redundancy to R320.0
Non-Redundant Server
Systems Use the following procedures to configure a redundant server pair after
ProcessLogix R320.0 software has been installed.
If you are adding Server redundancy to a non-redundant system, designate
an existing R320.0 non-redundant Server as the SERVERB (Secondary)
node. Designate the other Server as SERVERA (Primary) node.
Perform the following procedure on the Primary (SERVERA) and
Secondary (SERVERB) nodes.
Changing Hosts File Entries
Use the following procedure to map computer names to respective
unique IP addresses.
1. Use Notepad to view the Hosts file in the directory location:
C:\WINNT\SYSTEM32\DRIVERS\ETC.
IMPORTANT
Do not restart either Server at this time. Continue with
the next section.
ATTENTION
!
Be certain that your process is off control before you
begin any upgrade procedure. This means the
1757-PLX52 should be in the Idle state.
ATTENTION
!
To support redundant Servers (Primary/Secondary),
you must identify all computer names and respective
unique IP addresses in the Hosts file and be sure
they are resident on each ProcessLogix Client. Use
the DOS command >IPCONFIG/ALL<, or access
properties for TCP/IP Protocol through the Protocol
tab in the Network dialog box to obtain IP addresses
for all configured components.