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Message type: E = Error
Message class: SZDM_LOCK - To be used for messages due to read only locks
Message number: 816
Message text: MS subsystem separation is not active.
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.
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SZDM_LOCK816
- MS subsystem separation is not active. ?The SAP error message SZDM_LOCK816 indicates that the MS (Message Server) subsystem separation is not active. This error typically arises in a distributed SAP system environment where the Message Server is responsible for managing communication between different application servers.
Cause:
The error occurs when the system is configured to use a message server, but the subsystem separation feature is not enabled. Subsystem separation allows for better load balancing and resource management by separating different types of processes (like dialog, background, and update processes) across different application servers.
Solution:
To resolve the SZDM_LOCK816 error, you can take the following steps:
Check Configuration:
- Ensure that the SAP system is configured correctly for subsystem separation. This can be done by checking the instance profile parameters.
Enable Subsystem Separation:
- You may need to enable subsystem separation in the instance profile. This can typically be done by setting the following parameters in the instance profile:
ms/enable_subsystem_separation = 1
- After making changes to the profile, you will need to restart the SAP system for the changes to take effect.
Review Instance Profiles:
- Use transaction code RZ10 to edit the instance profile. Look for the parameters related to the message server and subsystem separation.
Check SAP Notes:
- Search for relevant SAP Notes in the SAP Support Portal that may provide additional guidance or patches related to this error.
Consult Documentation:
- Review the SAP documentation for your specific version to understand the implications of enabling subsystem separation and any additional configuration that may be required.
System Restart:
- After making the necessary changes, restart the SAP system to apply the new configuration.
Related Information:
Transaction Codes:
SAP Notes and Documentation:
Monitoring Tools:
If the issue persists after following these steps, it may be beneficial to consult with SAP support or your system administrator for further assistance.
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