ACO5405E An unknown virtual device error has been detected.


      Explanation
        A virtual device returned and unknown return code.\n" The SQL Server Virtual Device Interface (VDI) log, SQL Server activity log, SQL Server error log, or Windows application event log may contain more information.
      
      System action
        Processing ends.
      
      User response
        If the SQL Server messages do not resolve the problem, retry the operation. Contact your service representative if the error persists.