Rockwell Automation 1757-SWKIT4000 ProcessLogix R400.0 Installation and Upgrade Guide - Manual (Page 137)

Publication 1757-IN040B-EN-P - March 2002
Additional Redundant Server Procedures 6-3
Use the following format to make your separate line entries into
this file.
Where: is:
IP Address the assigned internet address with no leading zeros. For example, a
typical address could be >192.168.0.1<.
Computer Name a base name of up to 13 characters, which must be the same for each
ProcessLogix Server in the system.
•
In a redundant Server system, you must append a letter to the
base name to identify the PC’s function in the system architecture
with the letters a and b for the Primary and Secondary Servers,
respectively.
EXAMPLE
For example, if you have a redundant Server
system and you assign a base name of PLX1, the
Computer Name for the Primary Server and
Secondary Engineering Repository Database
(ERDB) would be >PLX1A<, the Secondary Server
and Primary ERDB would be >PLX1B<.
Computer Name0 the computer name appended with a 0 to show its association with
the first Ethernet adapter card.
Computer Name1 the computer name appended with a 1 to show its association with
the second Ethernet adapter card (in a dual Local Area Network (LAN)
system).
EXAMPLE
For example, if you have a redundant Server
system with a dual LAN and a base computer
name of >PLX1<, the Computer Names would be
>PLX1A0<, >PLX1B0<, and >PLX1A1<,
>PLX1B1< for their respective addresses. If you
have a single LAN system, you only need to
append the Computer Name with a “0”.
Comment any additional descriptive data you want to include for a given
Computer Name.
•
You must begin each entry with the number symbol >#<.
•
An example of a Host file with additional Host name entries and
comments is shown above for reference.
•
The Hosts file includes a default IP address of >127.0.0.1< for a
localhost. Do not delete this default entry from the Hosts file.