If all the cluster nodes need rebuilding, but you have backup copies of the SQL Server databases and the Indexing and saveset data for Enterprise Vault, you can follow the steps below to rectify the situation.
To repair all the nodes in the cluster
Rebuild all the computers and restore the SQL databases as follows:
Restore the Enterprise Vault Directory database.
See Procedure 2: Restoring the Enterprise Vault Directory database.
Recreate the cluster in VCS with the same number of disks, and mount the shared disk with the same drive letters as before.
Restore the Indexing and Enterprise Vault store data to disks using the same drive letters as before.
See Procedure 7: Copy or move the Enterprise Vault data files.
For each Enterprise Vault server in the cluster, perform the following steps in the order listed:
Run the Enterprise Vault Cluster Setup wizard to recreate the service groups. Use the same virtual server names as before.
Run the Enterprise Vault Configuration wizard on the primary node. Choose to configure a new Enterprise Vault server with cluster group.
The wizard detects the existing virtual server name and performs a repair.
When the repair is complete, a wizard page is displayed with which you can create the service resources. Do not bring the resources online when given the option to do so.
Run the Enterprise Vault Configuration wizard on the failover node. Choose to add the node as a failover node for an existing clustered server.
Check the Web Access application URL.
See Procedure 11: Checking the Web Access application settings.
Bring the cluster resources online and test that failovers work as planned.