With NW 7.1 SAP released a new web based tool (java applet) which you can use to perform simple central monitoring and administration tasks including the following :
Monitor and control (start, stop, or restart) the SAP system and its instances with a single tool.
● Display SAP log and trace files, start profiles, instance parameters, the system environment, SAP environment, Internet Communication Manager (ICM) queue statistics, and so on.
● Display and control Java processes.
● Display the ABAP work process overview and control ABAP processes.
● Monitor system alerts.
● Display the current status tree.
● Display the list of all access points to an SAP system.
● Display information about the AS Java threads, sessions, caches, aliases, Enterprise JavaBeans (EJB) sessions, remote objects.
● Display Java Virtual Machine garbage collection and heap memory information of the application server.
● Save the current console configuration in a file to reuse it later or to forward it to other users.
● Start third-party tools (such as Telnet), if available, to manage an application server.
Read more about it here.