How To Fix VIRT247 - 16GB Page Outs

SAP Error Message - Details

• Message type: E = Error

• Message class: VIRT - Virtualization Monitoring

• Message number: 247

• Message text: 16GB Page Outs

What causes this issue?

The amount of 16GB page page-outs.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message VIRT247 - 16GB Page Outs ?

  The SAP error message VIRT247, which indicates "16GB Page Outs," typically relates to memory management issues within the SAP system, particularly in the context of virtual memory and paging. This error suggests that the system is experiencing excessive paging, which can lead to performance degradation.
  Cause:
  
  Insufficient Memory Allocation: The SAP application may not have enough memory allocated to handle the workload, leading to excessive paging.
  High Workload: A sudden increase in workload or concurrent users can lead to memory exhaustion.
  Memory Leaks: Certain processes or applications may not be releasing memory properly, causing the system to run out of available memory.
  Configuration Issues: Incorrect configuration of the SAP system or the underlying operating system can lead to inefficient memory usage.
  Operating System Limits: The operating system may have limits on memory usage that are being hit.
  
  Solution:
  
  
  Increase Memory Allocation: 
  
  Review and increase the memory allocation for the SAP instance. This can be done by adjusting the profile parameters (e.g., abap/heap_area_total, abap/heap_area_dia, etc.) in the instance profile.
  
  
  
  Monitor Workload: 
  
  Use transaction codes like ST03N or ST04 to monitor the workload and identify any spikes or bottlenecks that may be causing high memory usage.
  
  
  
  Check for Memory Leaks: 
  
  Use tools like the SAP Memory Inspector or transaction ST02 to analyze memory usage and identify any potential memory leaks.
  
  
  
  Optimize Configuration: 
  
  Review the configuration settings for both SAP and the operating system to ensure they are optimized for your workload. This includes checking swap space and virtual memory settings.
  
  
  
  Upgrade Hardware: 
  
  If the workload consistently exceeds the current memory capacity, consider upgrading the server hardware to provide more RAM.
  
  
  
  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.
  
  
  
  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:
  
  Monitoring Tools: Use SAP's monitoring tools (ST02, ST03, ST04) to keep an eye on memory usage and performance metrics.
  SAP Basis Team: Collaborate with your SAP Basis team to ensure that the system is properly configured and that any necessary adjustments are made.
  Documentation: Refer to SAP documentation for best practices on memory management and performance tuning.
  
  By addressing the underlying causes and implementing the suggested solutions, you can mitigate the impact of the VIRT247 error and improve the overall performance of your SAP system.