How To Fix PF107 - Could not check shared memory pools on server &

SAP Error Message - Details

• Message type: E = Error

• Message class: PF - System parametrization messages in Computing Ctr Mgmt System

• Message number: 107

• Message text: Could not check shared memory pools on server &

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 PF107 - Could not check shared memory pools on server & ?

  The SAP error message PF107, which states "Could not check shared memory pools on server &," typically indicates an issue with the shared memory management in the SAP system. This error can arise due to various reasons, including configuration issues, memory allocation problems, or system resource constraints.
  Causes:
  
  Insufficient Memory Allocation: The SAP instance may not have enough memory allocated to handle the shared memory pools.
  Configuration Issues: Incorrect configuration settings in the instance profile or parameters related to memory management.
  Operating System Limits: The operating system may have limits on shared memory segments that are being exceeded.
  Resource Contention: Other processes on the server may be consuming memory resources, leading to contention.
  Corrupted Memory Segments: There may be issues with the shared memory segments themselves, possibly due to a system crash or improper shutdown.
  
  Solutions:
  
  
  Check Memory Allocation:
  
  Review the instance profile parameters related to memory, such as abap/heap_area_dia, abap/heap_area_nondia, and rdisp/PG_SHM.
  Increase the memory allocation if necessary.
  
  
  
  Review Configuration:
  
  Ensure that the configuration settings in the instance profile are correct and optimized for your system's workload.
  Check for any recent changes that might have affected the configuration.
  
  
  
  Operating System Settings:
  
  Check the operating system's shared memory settings. For example, on Linux, you can check the /etc/sysctl.conf file for parameters like kernel.shmmax and kernel.shmall.
  Adjust these parameters if they are too low for your SAP instance's requirements.
  
  
  
  Monitor System Resources:
  
  Use monitoring tools to check the overall memory usage on the server. Ensure that there are enough resources available for the SAP instance.
  Identify and terminate any unnecessary processes that may be consuming memory.
  
  
  
  Restart the SAP Instance:
  
  If the issue persists, consider restarting the SAP instance. This can help clear any corrupted memory segments and reinitialize the shared memory pools.
  
  
  
  Check SAP Notes:
  
  Look for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional troubleshooting steps.
  
  
  
  Consult SAP Support:
  
  If the problem continues after trying the above solutions, consider reaching out to SAP Support for further assistance.
  
  
  
  Related Information:
  
  SAP Memory Management: Understanding how SAP manages memory can help in diagnosing and resolving issues related to shared memory pools.
  System Logs: Check the system logs (dev_w0, dev_disp, etc.) for any additional error messages or warnings that may provide more context about the issue.
  Performance Tuning: Regularly review and tune the performance of your SAP system to prevent memory-related issues.
  
  By following these steps, you should be able to identify and resolve the underlying cause of the PF107 error in your SAP system.