You cannot run multiple Enterprise Vault service groups on the same node in a cluster. When configuring the cluster in an N+x configuration, you can stop this from happening by setting the Limits and Prerequisites attributes for every node.
For more information on these steps, see the Veritas Cluster Server Administrator's Guide.
To disallow two Enterprise Vault servers on the same node in a VCS cluster
Click anywhere in the Cluster Monitor panel to open Cluster Explorer.
For each node in the cluster, perform the following steps in the order listed:
In the configuration tree at the left, click the node whose attributes you want to edit.
Click Show all attributes to open the Attributes View dialog box.
In the Edit Attribute dialog box, add a key called EnterpriseVault and give it a value of 1.
Click OK to close the dialog box and return to the Attributes View dialog box.
Repeat for the Prerequisites attribute on each Enterprise Vault service group.
When both the Limits and Prerequisites attributes have a key called EnterpriseVault with a value of 1, two Enterprise Vault servers cannot run on the same node.