Enterprise Vault can archive from Domino journal databases on Domino Servers that are clustered using Domino application clustering.
To support clustered journal databases, the following requirements must be satisfied:
Each Domino Server in the cluster should be independently journaling to a local database.
Mail journaling databases should not be configured to replicate to other Domino servers in the cluster. This includes both cluster replication and scheduled replication.
Enterprise Vault should be configured to archive from the Domino journal databases on each server in the cluster.