The PowerCenter Integration Service can restore the workflow state after a suspended workflow fails over to another node if you enable recovery in the workflow properties.
If a service process shuts down while a workflow is suspended, the PowerCenter Integration Service marks the workflow as terminated. It fails the workflow over to another node, and changes the workflow state to terminated. The PowerCenter Integration Service does not recover any workflow task. You can fix the errors that caused the workflow to suspend, and manually recover the workflow.