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Chapter 2. Prerequisite Configuration

This document describes a procedure for configuring cluster resources and a cluster service. Before beginning this procedure, you must configure a cluster with a fencing device configured for each node in the cluster. In addition, you must configure a logical volume with a GFS filesystem that can be shared among the nodes in the cluster.
Table 2.1, “Configuration Prerequisities” summarizes the prequisite configuration components that have been set up before this procedure beings.
Component Name Comment
cluster nfsclust five-node cluster
cluster node clusternode1.example.com node in cluster nfsclust configured with a fencing device of nfs-apc
cluster node clusternode2.example.com node in cluster nfsclust configured with a fencing device of nfs-apc
cluster node clusternode3.example.com node in cluster nfsclust configured with a fencing device of nfs-apc
cluster node clusternode4.example.com node in cluster nfsclust configured with a fencing device of nfs-apc
cluster node clusternode5.example.com node in cluster nfsclust configured with a fencing device of nfs-apc
LVM volume /dev/myvg/myvol The LVM device on which the GFS file system is created
GFS file system The GFS file system to export by means of NFS, built on LVM volume /dev/myvg/myvol, mounted at /mnt/gfs, and shared among the members of cluster nfsclust
IP address 10.15.86.96 The IP address for the NFS service
NFS Client nfsclient1.example.com System that will access the NFS service
NFS Client nfsclient2.example.com System that will access the NFS service
NFS Client nfsclient3.example.com System that will access the NFS service
NFS Client nfsclient4.example.com System that will access the NFS service
NFS Client nfsclient5.example.com System that will access the NFS service
Table 2.1. Configuration Prerequisities

No failover domain has been defined for this cluster. The cluster software determines on which node to run the NFS service.
For information on configuring a cluster, see Configuring and Managing a Red Hat Cluster. For information on configuring an LVM volume, see LVM Administrator's Guide: Configuration and Administration.