Avago Technologies Syncro 9361-8i - Manual (Page 24)

Avago Technologies
- 24 -
Syncro CS 9361-8i and Syncro CS 9380-8e Solution User Guide 
October 2014
Chapter 2: Creating the Cluster
Creating the Cluster in Red Hat Enterprise Linux (RHEL) and CentOS
2.3.1.3 Stop and Disable NetworkManager Service
You need to stop and disable NetworkManager service because the Red Hat Linux Cluster cannot work if the
NetworkManager service starts. Perform the following step to stop and disable the service.
1. Enter the following command at the command line prompt:
service NetworkManager stop
2. Enter the following command at the command line prompt:
chkconfig NetworkManager off
2.3.1.4 Assign Static IP Addresses
Perform the following steps to assign static IP addresses.
1. For both nodes (a total of four IP addresses), perform these steps to set up the static IP address:
Run setup and select the path Network Configuration > Device Configuration.
2. Use the Domain Name System to enter the IP address 192.168.x.x.
3. Edit the /etc/hosts file to include the IP address and the hostname for both the node and the client.
Make sure you can ping the hostname from both the node and the client.
The following IP address, node, and client information are an example of a hosts file:
192.168.1.100 Node1
192.168.1.101 Node1
192.168.1.102 Node2
192.168.1.103 Node2
192.168.1.104 Client
2.3.1.5 Using the Ricci Service
Ricci is a daemon that runs on both server nodes and allows the cluster configuration commands to communicate
with each cluster node.
1. Perform the following steps to change the ricci password for both server nodes.
a. Enter the following command at the command prompt:
passwd ricci
b. Specify your password when prompted.
2. Start the ricci service by entering the following command at the command prompt for both nodes:
service ricci start
3. (Optional) Configure the ricci service to start on boot for both nodes by entering the following command at the
command prompt:
chkconfig ricci on
2.3.1.6 Starting the Luci Web Interface
Luci is a user interface server that allows you to configure the cluster using the High Availability management web
interface, Conga. Perform the following steps to start the luci web interface:
Best Practice: You can run the luci web interface on either node but it is best to run it on a remote management
system.
1. Enter the following command at the command prompt:
yum install luci
2. Enter the following command at the command prompt:
service luci start