How To Fix D4453 - Main storage pool: Wait to ineligible

SAP Error Message - Details

• Message type: E = Error

• Message class: D4 - DB2/400 specific messages

• Message number: 453

• Message text: Main storage pool: Wait to ineligible

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 D4453 - Main storage pool: Wait to ineligible ?

  The SAP error message D4453, which states "Main storage pool: Wait to ineligible," typically indicates an issue related to memory management within the SAP system. This error occurs when the system is unable to allocate memory from the main storage pool due to it being ineligible for allocation. Here are some potential causes, solutions, and related information:
  Causes:
  
  Memory Limitations: The system may have reached its memory limits, either due to insufficient physical memory or configuration settings that restrict memory allocation.
  Configuration Issues: Incorrect configuration of the SAP memory parameters (like abap/heap_area_total, abap/heap_area_dia, etc.) can lead to this error.
  High Load: A sudden spike in workload or resource-intensive processes can exhaust available memory.
  Fragmentation: Memory fragmentation can occur over time, leading to inefficient use of available memory.
  Background Jobs: Background jobs that consume a large amount of memory can lead to this issue.
  
  Solutions:
  
  Check Memory Configuration: Review and adjust the memory parameters in the SAP profile. Ensure that the parameters are set according to the system's requirements and available resources.
  Monitor Memory Usage: Use transaction codes like ST02 (Tune Summary) and SM50 (Process Overview) to monitor memory usage and identify any processes that are consuming excessive memory.
  Increase Physical Memory: If the server is consistently running out of memory, consider upgrading the physical memory of the server.
  Optimize Background Jobs: Review and optimize background jobs to ensure they are not consuming excessive memory. Schedule them during off-peak hours if possible.
  Restart the System: In some cases, a system restart can help clear memory fragmentation and free up resources.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide patches and updates that could resolve underlying issues.
  
  Related Information:
  
  SAP Memory Management: Understanding how SAP manages memory can help in troubleshooting. SAP uses different memory areas (like heap memory, roll memory, etc.) for various processes.
  Transaction Codes: Familiarize yourself with transaction codes such as ST02, SM37 (for job monitoring), and SM66 (for global process overview) to help diagnose memory issues.
  SAP Community and Support: Engage with the SAP Community or consult SAP Support for additional insights and assistance regarding this error.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP Basis team or reach out to SAP Support for further assistance.