How To Fix D3756 - Number of private frames paged out

SAP Error Message - Details

• Message type: E = Error

• Message class: D3 - CCMS - DB2 on OS390

• Message number: 756

• Message text: Number of private frames paged out

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 D3756 - Number of private frames paged out ?

  The SAP error message D3756, which states "Number of private frames paged out," typically relates to memory management issues within the SAP system. This error indicates that the system is experiencing memory pressure, leading to the paging out of private memory frames. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Memory Pressure: The SAP system is running low on available memory, causing it to page out private frames. This can happen due to high workload, insufficient memory allocation, or memory leaks in the application.
  Configuration Issues: The SAP instance may not be optimally configured for the available hardware resources, leading to inefficient memory usage.
  High User Load: A sudden increase in user load or background jobs can lead to increased memory consumption.
  Inefficient Queries: Poorly optimized database queries can consume excessive memory resources.
  
  Solutions:
  
  Increase Memory Allocation: If possible, increase the memory allocated to the SAP instance. This can be done by adjusting the instance profile parameters (e.g., abap/heap_area_total, abap/heap_area_dia, etc.).
  Optimize Configuration: Review and optimize the SAP instance configuration to ensure it is aligned with the available hardware resources. This includes adjusting parameters related to memory management.
  Monitor and Analyze Workload: Use transaction codes like ST03N (Workload Analysis) and ST06 (Operating System Monitor) to analyze the workload and identify any spikes or trends that may be causing memory pressure.
  Review Background Jobs: Check for any long-running or resource-intensive background jobs that may be consuming excessive memory and optimize or schedule them during off-peak hours.
  Database Optimization: Ensure that database queries are optimized. Use transaction codes like ST04 (Database Performance Analysis) to monitor database performance and identify slow queries.
  Patch and Upgrade: Ensure that the SAP system is up to date with the latest patches and upgrades, as these may contain performance improvements and bug fixes.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to memory management and performance tuning for specific recommendations and best practices.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have implemented.
  Monitoring Tools: Utilize SAP monitoring tools like SAP Solution Manager or third-party monitoring solutions to keep track of system performance and memory usage.
  
  Conclusion:
  Addressing the D3756 error involves a combination of increasing memory resources, optimizing configurations, and monitoring system performance. Regular maintenance and performance tuning can help prevent this issue from occurring in the future. If the problem persists, consider reaching out to SAP support for further assistance.