How To Fix D4451 - Monitoring object: Main storage pool

SAP Error Message - Details

• Message type: E = Error

• Message class: D4 - DB2/400 specific messages

• Message number: 451

• Message text: Monitoring object: Main storage pool

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 D4451 - Monitoring object: Main storage pool ?

  The SAP error message D4451, which refers to "Monitoring object: Main storage pool," typically indicates an issue related to memory management within the SAP system. This error can arise when the main storage pool is either insufficient or not configured correctly, leading to performance issues or system instability.
  Cause:
  
  Insufficient Memory Allocation: The main storage pool may not have enough memory allocated to handle the current workload.
  Configuration Issues: Incorrect configuration settings in the SAP system can lead to inefficient memory usage.
  High Workload: A sudden increase in workload or a large number of concurrent users can exhaust the available memory.
  Memory Leaks: Applications or processes that do not release memory properly can lead to depletion of the main storage pool.
  
  Solution:
  
  
  Increase Memory Allocation:
  
  Review and increase the memory settings for the main storage pool in the SAP system configuration.
  This can typically be done in the instance profile parameters (e.g., abap/heap_area_total, abap/heap_area_dia, etc.).
  
  
  
  Monitor Memory Usage:
  
  Use transaction codes like ST02 (Tune Summary) or ST03 (Workload Analysis) to monitor memory usage and identify bottlenecks.
  Analyze the memory consumption of different work processes and adjust accordingly.
  
  
  
  Optimize Configuration:
  
  Review the configuration settings in the instance profile and adjust parameters related to memory management.
  Ensure that the settings are aligned with the recommended values for your system's workload and hardware specifications.
  
  
  
  Check for Memory Leaks:
  
  Investigate any custom programs or third-party applications that may be causing memory leaks.
  Use tools like the SAP Memory Inspector to identify and resolve memory leaks.
  
  
  
  System Restart:
  
  In some cases, a system restart may help to clear temporary memory issues and restore normal operation.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional guidance.
  
  
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for detailed information on memory management and configuration.
  SAP Community: Engage with the SAP Community forums to seek advice from other users who may have encountered similar issues.
  Performance Tuning: Consider conducting a performance tuning exercise to optimize the overall system performance, which may help alleviate memory-related issues.
  
  If the problem persists after trying the above solutions, it may be necessary to engage SAP support for further assistance.