1. Read the release notes of packages and do the home work (very Important)
2. Download the Support Packs from the SAP Market Place
2.a. CTRLSAPDBnn_0-20000nnn.SAR
2.b. J2EERTnn_0-20000nnn.SAR
2.c. J2EERTOSnn_0-20000nnn.SAR
2.d. SAPINSTnn_0-20000nnn.SAR
2.e. SAPCAR (optional, but necessary because what you have might not be the latest)
3. Create a Temporary File System, and
4. Extract SAPINST* and CTRL* SAR Files
5. Extract OS Independent (J2EERTnn_0-20000nnn.SAR) and apply First and then extract the OS Dependent Files and apply. The Order is important.
6. J2ee Engine patching would either be required to be done by sapinst or by SDM or JSPM tools. The details will be mentioned in the release notes.
7. First patch the Central Instance, when you run the sapinst
a. The patching should be done first for the Central Instance
i. The Option “Import Support Package nn”, when you run the sapinst.
b. Only then patch the Dialog instance
1. Choose the option “Support Package nn – Dialog Instance Update”
6 Restart the j2ee engine.
7 Check the status from the URL http://hostname:javaport/ -> “System Information”
ABAP Stack require 3 System Landscape
ABAP requires 3 systems Landscape because ABAP modifies programs and moves them as a program to the consolidation for Testing. Since ABAP has both have Client Dependent and Client Independent data(s) and programs (cross client data consists of Programs and Data Dictionary), modification to such programs cannot be tested reliably in the same (development) system, which anyway would work correctly. So to simulate a production environment the changes need to be tested in Quality System. So an ABAP system would require 3 and not 2 systems landscape.
JAVA Stack require 4 System Landscape
In a Java stack the program are not moved alone, they are moved along with its other dependencies as a Software Component (jar, ear files). In the development system a user can copy the program and modify it and but would require a consolidation system for consolidating and building the application (Software Component). So a program is transported from Development System to Consolidation System. The Consolidation system will build the application. Once the software components are built they would be moved to Test System for Testing and finally to delivery System (Production System). Thus a Java Stack would require a 4 system landscape for a development Infrastructure.
In addition to these 4 Servers, there would be one more system which will host the Netweaver Development Infrastructure Application (NW + NWDI)
Development System -> Consolidation System -> Test System -> Productions System
Development : will have the modified Sources
Consolidation : Will consolidate the modified program from Development system and will be built as a Software component (jar File)
Testing : Software Component will tested here
Production : Productions System
Product -> Software Component -> Development Component -> Program
SAP NW 2004s Development Infrastructure
http://help.sap.com/saphelp_nw04s/helpdata/en/71/0369404c65587ee10000000a155106/frameset.htm
