=Quick= Installation of Red Hat High Availability Add-On
TECH
Red Hat High Availability (HA) Add-On (née Cluster Suite) installs quickly using both CLI and
NOTE
GUI (Conga) tasks. HA can be installed using only the command line, but the luci web
interface simplifies and visualizes the procedure and eliminates potential for error.
Before you begin... Install Red Hat Enterprise Linux on each system to become a cluster node plus one system to become the
Conga management web app. Install RHEL 6.x using any supported method (DVD, kickstart, Satellite). As with other
critical add-on products, ensure that only a Base installation is used. During a manual DVD installation, for example, choose
the Minimal software set, then select to Customize Now on the software selection screen. On the Next screen, highlight
Base System on the left, click the Base checkbox on the right, then press Next to continue the installation.
Additional operating system packages will be installed later, as dependencies to the Add-Ons being installed (e.g. NFS,
iSCSI, multipathing, fibre channel, python, volume management and advanced filesystems.) By installing only the Base
System, there can be no package or security conflicts prior to installing the High Availability and Resilient Storage Add-Ons.
Next, configure yum to point to the existing yum/kickstart server or subscribed RHN/Satellite server. Confirm that the High
Availability and Resilient Storage channels are configured, in addition to the Red Hat Enterprise Linux base channel.
1. Install group packages for necessary cluster and cluster management software on cluster nodes. Install the necessary software
at one time and reboot. Repeat these commands on each cluster node. Wait for nodes to finish booting and become ready.
[root@nodeY ~]# yum -y groupinstall "High Availability" "Resilient Storage"
[root@nodeY ~]# echo redhat | passwd --stdin ricci
[root@nodeY ~]# chkconfig ricci on; init 6
Best practice: Change the ricci password from 'redhat' to something more secure, as this example is for practice only.
2. Install and configure the Conga management packages on the web administration node.
[root@node4 ~]# yum -y install luci ccs
[root@node4 ~]# chkconfig luci on; service luci start
[root@node4 ~]# firefox https://node4.clusterX.example.com:8084 &
Log in as student with a password of student. Accept the Warning. Then log out of the interface without further action.
Log in as root with a password of redhat. Accept the Warning.
Click on the Admin link at top right. Select student from the Select a User drop-down. Check the Can Create Clusters, Can
Import Existing Cluster and Luci Administrator checkboxes. Click Submit to apply. Log out of the interface.
Log in again as student. Perform all remaining tasks as student using the newly assigned Administration roles.
3. Using the luci web interface, build a new cluster. Navigate to the Homebase screen. Select the Manage Clusters link.
Click on Create to configure a new cluster. Fill in the fields with only these options set:
Cluster Name clusterX
Use the Same Password for All Nodes Yes
Download Packages No
Use Locally Installed Packages Yes
Reboot Nodes Before Joining Cluster No
Enable Shared Storage Support Yes
Node Names: node1.private.clusterX.example.com
node2.private.clusterX.example.com
node3.private.clusterX.example.com
Password redhat
Ricci Hostname
Ricci Port 11111
Click Create Cluster. Wait patiently for the cluster to assemble and display in the luci web interface.
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Quick install of HA Cluster Add-On July 23, 2013 Page 1