To replicate all graphs ( except the system graph http://www.openlinksw.com/schemas/virtrdf# ), one should use http://www.openlinksw.com/schemas/virtrdf#rdf_repl_all as graph IRI:

SQL> DB.DBA.RDF_RDF_REPL_GRAPH_INS ('http://www.openlinksw.com/schemas/virtrdf#rdf_repl_all');