How To Fix SLD012 - Unable to delete SLD shared memory; use RZ20/RZ21 to delete it manually

SAP Error Message - Details

• Message type: E = Error

• Message class: SLD - SLD Messages

• Message number: 012

• Message text: Unable to delete SLD shared memory; use RZ20/RZ21 to delete it manually

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SLD012 - Unable to delete SLD shared memory; use RZ20/RZ21 to delete it manually ?

  The SAP error message SLD012 indicates that the system is unable to delete the SLD (System Landscape Directory) shared memory. This can occur for various reasons, such as issues with the shared memory itself, locks on the memory, or problems with the SLD configuration.
  Cause
  
  Locks on Shared Memory: The shared memory might be locked by another process, preventing deletion.
  Configuration Issues: There may be misconfigurations in the SLD settings or the SLD itself.
  System Resource Issues: Insufficient system resources or memory issues can also lead to this error.
  Background Jobs: If there are background jobs that are using the SLD, they may prevent the deletion.
  
  Solution
  To resolve the error, you can follow these steps:
  
  
  Check Locks: Use transaction code SM12 to check for any locks on the shared memory. If you find any locks that are not needed, you can delete them.
  
  
  Use RZ20/RZ21: As suggested in the error message, you can manually delete the SLD shared memory using transaction codes RZ20 or RZ21:
  
  RZ20: This transaction is used for monitoring and managing the SLD. You can navigate to the relevant node and check the status of the SLD.
  RZ21: This transaction is used for managing the SLD configuration. You can use it to delete the shared memory manually.
  
  
  
  Restart the SLD: If the above steps do not resolve the issue, consider restarting the SLD service. This can help clear any locks or issues with the shared memory.
  
  
  Check System Logs: Use transaction code SM21 to check the system logs for any related errors or warnings that might provide more context on the issue.
  
  
  Review Configuration: Ensure that the SLD is correctly configured. Check the settings in transaction SLD1 and ensure that the SLD is properly connected to the system landscape.
  
  
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  
  
  Related Information
  
  SLD Overview: The System Landscape Directory (SLD) is a central component in SAP landscapes that stores information about the system landscape and is used for various SAP applications.
  Memory Management: Understanding how SAP handles shared memory can help in troubleshooting issues related to memory locks and resource allocation.
  SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance.
  
  By following these steps, you should be able to resolve the SLD012 error and successfully manage the SLD shared memory.