A data replication system having a redundant configuration including dual Fiber Channel fabric links interconnecting each of the components of two data storage sites, wherein each site comprises a host computer and associated data storage array, with redundant array controllers and adapters. The method includes providing a wire having a termination and providing a first shell having a first proximal end, a first distal end, and a first passage extending from the first proximal end to the first distal end. An abstract configuration of a system specifies a location where an instance of the application is to be deployed within the system. Sensors used for tool use and parts selection, error messages and actions to be performed or monitored are all defined and related in the tables and in turn to specific assembly orders.