In VCS, a service group represents a virtual server. Each service group contains a set of resources, which you can bring online or offline when a group fails over to another node in the cluster. You can arrange a combination of these resources to make a complete Enterprise Vault server.
Before you can configure Enterprise Vault in a cluster, you must configure a service group to represent the Enterprise Vault server. VCS provides several ways to configure a service group, including the Enterprise Vault Cluster Setup wizard, Cluster Manager (both Java Console and Web Console), and the command line
We recommend that Enterprise Vault cluster groups contain resources related to Enterprise Vault only.