How To Fix SZDM_LOCK817 - MS subsystem separation is still active.

SAP Error Message - Details

• Message type: E = Error

• Message class: SZDM_LOCK - To be used for messages due to read only locks

• Message number: 817

• Message text: MS subsystem separation is still active.

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 SZDM_LOCK817 - MS subsystem separation is still active. ?

  The SAP error message SZDM_LOCK817 indicates that there is an issue related to the MS (Message Server) subsystem separation in the SAP system. This error typically arises when there are locks or active processes that prevent the system from performing certain operations, particularly in a distributed environment where multiple application servers are involved.
  Cause:
  
  Active Locks: The error usually occurs when there are active locks in the system that prevent the separation of the message server from the application server.
  Incomplete Shutdown: If the system was not properly shut down or if there are still processes running that are tied to the message server, this error can occur.
  Configuration Issues: Misconfigurations in the SAP system settings related to the message server or application server can also lead to this error.
  Long-running Processes: Long-running background jobs or transactions that are still active can cause this issue.
  
  Solution:
  
  Check Active Processes: Use transaction codes like SM50 or SM66 to check for any active processes that might be holding locks. If you find any unnecessary or long-running processes, consider terminating them if appropriate.
  Review Locks: Use transaction SM12 to check for any locks that might be causing the issue. If you find locks that are no longer needed, you can delete them.
  System Restart: If the issue persists, consider restarting the affected application server or the entire SAP system. Ensure that all processes are properly terminated before doing so.
  Check Configuration: Review the configuration settings for the message server and application server to ensure they are set up correctly. This includes checking the instance profiles and parameters.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address this specific error. There may be patches or updates that can resolve the issue.
  Consult Documentation: Refer to the SAP documentation for more detailed troubleshooting steps related to message server and application server configurations.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SM50, SM66, SM12, and SM21 for monitoring processes, locks, and system logs.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  SAP Support: If the problem persists and you are unable to resolve it, consider reaching out to SAP Support for assistance.
  
  By following these steps, you should be able to diagnose and resolve the SZDM_LOCK817 error effectively.