Summary
                       	                                Oracle archivelog backups hang after  "starting backup of target database" message.
                       	                        
                       	                Error
							No error message is showed. Oracle archivelog backup sessions simply hang after the  "starting backup of target database" message.
						
					Cause
                               	                        The omnirc OB2_SQLP_SCRIPT_TIMEOUT variable was set to -1.  Setting the variable to its default value fixed the problem.