System monitoring involves proactive monitoring of application servers, CPU utilization, database space, monitoring log files, etc.
System monitoring also includes the following −
- Batch jobs monitoring
- Database performance monitoring
- Monitoring application users
- Spool request monitoring
- Print requests
To monitor the SAP system, use transaction code — SM51
![System Overview](https://www.tutorialspoint.com/sap_basis/images/system_overview.jpg)
To check the list of processes, go to Processes icon.
![Process Overview](https://www.tutorialspoint.com/sap_basis/images/process_overview.jpg)
To monitor application users, use transaction codes — AL08 and SM04
![List of Users](https://www.tutorialspoint.com/sap_basis/images/list_of_users.jpg)
Use transaction code — SM04
![Logged On](https://www.tutorialspoint.com/sap_basis/images/logged_on.jpg)
To monitor update processes, use transaction code — SM13. In User field enter ‘*’ and click on Execute.
![Update Requests](https://www.tutorialspoint.com/sap_basis/images/update_requests.jpg)
If there is no pending request, queue will be empty as in the following screenshot −
![Update Records Found](https://www.tutorialspoint.com/sap_basis/images/update_records_found.jpg)
![Program Administration](https://www.tutorialspoint.com/sap_basis/images/program_administration.jpg)
The following table shows important transaction codes for system monitoring and performance checks −
Monitoring System Log | SM21 |
Tune Summary | ST02 |
CPU Utilization | ST06 |
ABAP Dumps | ST22 |
Spool Request Monitoring | SP01 |
Monitoring Batch Job | SM37 |
Database Administration | DB02 |
Database backup logs | DB12 |
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