Migrating servers using the Server Settings Migration Wizard (SSMW) for Enterprise Vault can greatly simplify the steps which are need to successfully migrate to new server-hardware. Where can you find the SSMW?
Well because it's a tool that changes, and is out-of-band to the main releases of Enterprise Vault, it's in it's own separate download location. The latest can be found in this article:
Enterprise Vault Server Settings Migration Wizard
In the article you'll find a download link, recently 'fixed' list, and, a document explaining how to use the tool.