1.3.1.2.2 Two-Pipe Model
In the two-pipe model, after an XA Resource Manager is enlisted in an OleTx transaction, the XA Resource Manager Bridge Facet makes the necessary XA Interface calls for the Two-Phase Commit Protocol when communicating with the XA Resource Manager.
If a transient failure occurs and recovery is necessary, the XA Resource Manager Bridge Facet drives the recovery process with all the registered XA Resource Managers.