A few people have asked if it’s possible to create log files of what is happening in regards to Enterprise Vault versus Sharepoint. You can enable logging for this, in a similar way to the Enterprise Vault OWA logging :
Open the web.config file for the SharePoint Web application (usually C:\Inetpub\wwwroot\wss\VirtualDirectories\<port number>\web.config)
Locate and change the following entries as desired:
<add key="EnterpriseVault_LogEnabled" value="true" />
<add key="EnterpriseVault_LogFolder" value="C:\Program Files\Enterprise Vault\SharePoint Logs\" />
<add key="EnterpriseVault_UsersToLog" value="" />
Logging can be restricted to a specific user by entering domain\username in the EnterpriseVault_UsersToLog...