Perform this procedure on the nodes that are to act as failover nodes.
To configure a failover node in a Microsoft cluster
Ensure that the Enterprise Vault resource group is online on a different node in the cluster. The resource group must not be online on the node that you are configuring. The node that you are configuring must be a possible failover node for the resources.
On the node's Windows Start menu, click All Programs > Enterprise Vault > Enterprise Vault Configuration. The first page of the Enterprise Vault Configuration wizard appears.
Click Configure the node as a failover node for an existing clustered server, and then click Next.
The wizard prompts you for the name of the Enterprise Vault resource group for which you want to add the node as a failover node.
Select the Enterprise Vault resource group that is configured to fail over to this node and then click Next.
On the next wizard page, enter the password for the Vault Service account, and then click Next.
The next wizard page lists the actions the wizard will take if you proceed. To continue click Next, then click and then click OK to confirm the actions taken.
The final wizard page displays a list of the actions the wizard has performed, and the results. Click Finish to exit the wizard.