Portal 
This section provides you with information about administration and maintenance tasks specific to the portal-related capabilities of the SAP NetWeaver usage type Enterprise Portal (PI). It also refers you to the tools and the documentation you need to perform these tasks.
For further information about usage type EP, see the section on SAP NetWeaver usage types in the Master Guide for SAP NetWeaver 2004s at service.sap.com/instguidesNW2004s ® Planning.
Technical System Landscape
The technical system landscape illustrates the main technical components of usage type EP and the communication between these components. For more information, see Technical System Landscape.
Tasks
Administration and maintenance of the portal are performed either on demand or on a periodical basis. For more information, see the following:
Describes the monitoring and log applications available in the portal for monitoring and checking the different components, applications and services shipped with the portal. With the information you obtain through monitoring, logging and tracing, you can analyze the system and initiate any necessary measures.
Describes various portal administrative and maintenance tasks necessary to keep in the portal running optimally, such as clustering, load balancing, user management, clearing the portal runtime cache, starting and stopping servers, back and restore and implementing a reverse proxy filter.
Describes how you can establish consistent and solution-wide change management environment. Topics covered are transport and change management, support packages and SAP notes implementation, and release and upgrade management.
Describes aspects related to troubleshooting your portal.