Avago Technologies Syncro CS 9271-8i - Manual (Page 29)

LSI Corporation
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Syncro CS 9271-8i Solution User Guide
October 2013 Chapter 3: Creating the Cluster
Creating the Cluster in Red Hat Enterprise Linux (RHEL)
3.4.1.2 Install and Configure the High Availability Add-On Features
The Syncro CS solution requires that the Red Hat Enterprise Linux High Availability add-on be applied to the base
RHEL OS.
Perform the following steps to install and configure the add-on feature.
1. Install the Red Hat Cluster Resource Group Manager, Logical Volume Manager (LVM), and GFS2 utilities, and then
update to the latest version by typing the following commands at the command prompt:
yum install rgmanager lvm2-cluster gfs2-utils
yum update
NOTE This step assumes that both nodes have been registered with Red Hat
using the Red Hat Subscription Manager.
2. Ricci is a daemon that runs on both server nodes and allows the cluster configuration commands to communicate
with each cluster node.
Perform the following steps to change the ricci password for both server nodes.
a. Enter the following at the command prompt:
passwd ricci
b. Specify your password when prompted.
c. Start the ricci service by entering the following at the command prompt for both nodes:
service ricci start
d. (Optional) Configure the ricci service to start on boot for both nodes by entering the following at the
command prompt:
chkconfig ricci on
3. Luci is a user interface server that allows you to configure the cluster using the High Availability management
web interface, Conga.
Best Practice: You can run the luci web interface on either node but it is best to run it on a remote
management system.
Install luci by entering the following at the command prompt:
yum install luci
service luci start
3.4.1.3 Configure SELinux
You need to configure SELinux policies to allow for clustering. Refer to Red Hat documentation to properly configure
your application
3.4.2 Creating the Cluster
Configuring cluster software often occurs on a single node and is then pushed to the remaining nodes in the cluster.
Multiple methods exist to configure the cluster, such as using the command line, directly editing configuration files,
and using a GUI. The procedures in this document use the Conga GUI tool to configure the cluster. After the Cluster is
created, the following steps allow you to specify cluster resources, configure fencing, create a failover domain, and
add cluster service groups.
Perform the following steps to create the Cluster.
1. Launch the luci web interface by going to https://YOUR_LUCI_SERVER_HOSTNAME:8084 from your web browser.