How To Fix ITS056 - Quota Non Paged Pool Usage

SAP Error Message - Details

• Message type: E = Error

• Message class: ITS - Messages for Agent-Based ITS Monitor

• Message number: 056

• Message text: Quota Non Paged Pool Usage

Self-Explanatory Message

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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 ITS056 - Quota Non Paged Pool Usage ?

  The SAP error message ITS056, which indicates "Quota Non Paged Pool Usage," typically relates to memory management issues in the Windows operating system, particularly concerning the Non-Paged Pool memory. This error can occur when the Non-Paged Pool memory usage exceeds the configured limits, which can lead to performance degradation or system instability.
  Cause:
  
  Memory Leaks: Applications or drivers that do not release memory properly can lead to excessive Non-Paged Pool usage.
  Configuration Limits: The system may have a low limit set for Non-Paged Pool memory, which can be reached quickly under heavy load.
  High Load: A sudden increase in workload or concurrent users can lead to increased memory usage.
  Driver Issues: Faulty or outdated drivers can contribute to excessive memory consumption in the Non-Paged Pool.
  
  Solution:
  
  Monitor Memory Usage: Use tools like Windows Performance Monitor to track Non-Paged Pool usage and identify trends or spikes.
  Increase Non-Paged Pool Size: If the system is consistently hitting the limit, consider increasing the Non-Paged Pool size. This can be done by adjusting the system's memory settings in the Windows registry.
  
  Navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management.
  Modify the PagedPoolSize and NonPagedPoolSize values as needed (be cautious and ensure you understand the implications of these changes).
  
  
  Update Drivers: Ensure that all system drivers, especially network and storage drivers, are up to date. This can help mitigate memory leaks caused by outdated drivers.
  Check for Memory Leaks: Use debugging tools to analyze the system for memory leaks. Tools like WinDbg or PoolMon can help identify which drivers or applications are consuming excessive Non-Paged Pool memory.
  Optimize SAP Configuration: Review and optimize SAP settings to ensure efficient memory usage. This may include adjusting parameters related to the application server and the number of concurrent users.
  System Restart: In some cases, a simple restart of the system can temporarily alleviate the issue, but it is not a long-term solution.
  
  Related Information:
  
  Windows Memory Management: Understanding how Windows manages memory, including the differences between Paged and Non-Paged Pool, can provide insights into resolving this issue.
  SAP Notes: Check SAP Notes and Knowledge Base Articles for any specific recommendations or patches related to this error.
  Performance Tuning: Regular performance tuning and monitoring of the SAP system can help prevent such issues from arising in the future.
  
  If the problem persists after trying these solutions, it may be beneficial to consult with SAP support or a system administrator with experience in Windows and SAP environments.