You can cluster Enterprise Vault in a Microsoft server cluster on Windows 2003/2008 Enterprise or Datacenter Edition, to provide a high availability solution for Enterprise Vault. If you are setting up Enterprise Vault in an environment where Microsoft Exchange and SQL server are clustered, you may want to cluster Enterprise Vault to ensure that you can meet your service level agreements, recovery times, and recovery point objectives.
High availability is provided by creating an Enterprise Vault virtual server that can fail over between physical nodes in the cluster. When Enterprise Vault services are running on a virtual server they operate with virtual IP addresses, a virtual computer name, virtual Microsoft Message Queues, and highly available shared disks. When a failure occurs, the cluster software can move the virtual server's resources to a different physical node in the cluster.
To cluster Enterprise Vault in a Microsoft server cluster, you need a working knowledge of Microsoft server clusters. For detailed information on Microsoft server clusters, see your Microsoft documentation.