How To Fix RZ393 - Server started without update2 processes; number cannot be changed

SAP Error Message - Details

• Message type: E = Error

• Message class: RZ - Messages for Computing Center Management System

• Message number: 393

• Message text: Server started without update2 processes; number cannot be changed

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message RZ393 - Server started without update2 processes; number cannot be changed ?

  The SAP error message RZ393 indicates that the SAP system has started without the update processes (update work processes) being active. This can lead to issues with data consistency and transaction processing, as update processes are responsible for handling database updates in a reliable manner.
  Cause:
  
  Configuration Issues: The update processes may not be configured correctly in the instance profile.
  System Resource Limitations: There may be insufficient system resources (CPU, memory) to start the update processes.
  Process Termination: The update processes may have been terminated or failed to start due to errors or misconfigurations.
  Database Connection Issues: Problems with the database connection can prevent update processes from starting.
  System Parameters: The parameters related to update processes in the instance profile may be incorrectly set.
  
  Solution:
  
  
  Check Instance Profile:
  
  Go to the instance profile of the SAP system and verify the configuration for update processes. Ensure that the parameters for update work processes (e.g., rdisp/wp_no_update) are set correctly.
  You can check the profile parameters using transaction RZ10.
  
  
  
  Review System Logs:
  
  Check the system logs (transaction SM21) and developer traces (transaction ST22) for any errors or warnings that might indicate why the update processes did not start.
  
  
  
  Restart the SAP System:
  
  If the update processes are not starting due to a temporary issue, try restarting the SAP system. Ensure that the instance is started with the correct profile.
  
  
  
  Check System Resources:
  
  Ensure that the server has enough resources (CPU, memory) available to start the update processes. You can monitor system performance using tools like top or htop on Unix/Linux systems.
  
  
  
  Database Connection:
  
  Verify that the database is up and running and that the SAP system can connect to it without issues. Check the database logs for any errors.
  
  
  
  SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that might address this specific issue. There may be patches or updates that need to be applied.
  
  
  
  Contact SAP Support:
  
  If the issue persists after trying the above steps, consider reaching out to SAP Support for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  RZ10: Profile maintenance
  SM21: System log
  ST22: Dump analysis
  RZ03: Display instance profile
  
  
  SAP Documentation: Refer to the official SAP documentation for detailed information on configuring update processes and troubleshooting related issues.
  System Monitoring: Regularly monitor the system's performance and logs to catch issues early.
  
  By following these steps, you should be able to identify and resolve the issue related to the RZ393 error message.