System Administration Assistant - SAP BW

This section introduces other general system monitoring tools,mainly from the Basis point of view. These tools come bundled in an SAP function called System Administration Assistant,which is accessible via transaction SSAA. SSAA contains SAP-recommended daily,weekly,monthly,nonscheduled,and occasional system monitoring tasks. The following procedure demonstrates the use of this function.

Work Instructions:
Step 1. Run transaction SSAA. Click Work Instructionsto get basic ideas about what this tool is and how it works.
R/3 Administrative Activities

Step 2. The opened Application help file indicates that SSAA is System Administration Assistant,an administration concept implemented by SAP for system administrators.
System Administration Assistant

Step 3. Click Clickin Screen to reach Screen.
System Administration Assisstant

Result:
We can now start the SAP-recommended daily,weekly,monthly,nonscheduled,and occasional system monitoring tasks.
We can also perform these tasks directly by running their corresponding transaction codes and UNIX commands (see Table).

SAP-RECOMMENDED SYSTEM MONITORING TASKS


SAP-RECOMMENDED SYSTEM MONITORING TASKS

Note:CCMS stands for Computer Center Management System. As shown in Screen,CCMS itself collects together many monitoring tasks.Each monitoring task in Screen has three icons. Table describes how to use these icons.

SAP EASY ACCESS
SAP EASY ACCESS

FUNCTION ICONS IN SCREEN

FUNCTION ICONS IN SCREEN

For example,if we click next to SAP: CCMS System Monitoring (General Monitoring Functions) in Screen,we get another SAP session.
CCMS Monitor Sets -Maintenanace Function OFF

From this screen,we can monitor the following items:

  • Background Processing,which includes background work processes and background jobs.
  • Buffers,which include memory buffers for SAP objects,such as programs,table definitions,and table entries.
  • Change and Transport System,which includes the object export/import and transport environment.
  • Communications,which include gateway services,ALE (Application Link Enabling),and transactional RFC (Remote Function Call). BEx requires gateway services to communicate with an SAP application server. BW requires ALE and transactional RFC to communicate with its R/3 source systems.
  • Data Archiving,which was introduced in BW 3.0A and is not available in 2.0B.
  • Database,which includes space,performance,and backup/restore operations.
  • Dialog Overview,which includes dialog response time and network time.
  • Entire System,which duplicates other functions listed here.
  • Operating System,which includes the file systems,CPU,paging,swap space,and LAN.
  • Security,which includes security checks and audit logs of CPI-C (Common Programming Interface—Communications) and RFC logons.
  • Spool System,which includes spool work processes and the spool queue length.
  • System Log.

Now that we know how to monitor a BW system and measure its performance,we can examine techniques to improve query performance and load performance.


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