There are two ways to install the software needed for High Availability clusters: either from a command line, using zypper, or with YaST which provides a graphical user interface. After installing the software on all nodes that will be part of your cluster, the next step is to initially configure the cluster so that the nodes can communicate with each other and to start the services needed to bring the cluster online. The initial cluster setup can either be done manually (by editing and copying the configuration files) or with the YaST cluster module.
This chapter describes how to do a new installation and setup with SUSE Linux Enterprise High Availability Extension 11 from scratch. Refer to chapter Section C.0, Upgrading Your Cluster to the Latest Product Version if you want to migrate an existing cluster that runs an older version of SUSE Linux Enterprise High Availability Extension or if you want to update any software packages on nodes that are part of a running cluster.