How To Fix VIRT244 - 16MB Page Ins

SAP Error Message - Details

• Message type: E = Error

• Message class: VIRT - Virtualization Monitoring

• Message number: 244

• Message text: 16MB Page Ins

What causes this issue?

The amount of 16MB page page-ins.

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 VIRT244 - 16MB Page Ins ?

  The SAP error message VIRT244, which indicates "16MB Page Ins," typically relates to memory management issues within the SAP system, particularly in the context of virtual memory and paging. This error can occur when the SAP system is trying to access memory pages that are not currently in physical memory, leading to performance degradation or system instability.
  Cause:
  
  Insufficient Memory Allocation: The SAP instance 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.
  Configuration Issues: Incorrect configuration of the SAP memory parameters (like abap/heap_area_total, abap/heap_area_dia, etc.) can lead to inefficient memory usage.
  Operating System Limits: The underlying operating system may have limits on memory usage that are being hit.
  Database Configuration: If the database is not properly configured to handle the memory requirements of the SAP application, it can lead to paging issues.
  
  Solution:
  
  Increase Memory Allocation: Review and increase the memory settings for the SAP instance. This can include adjusting parameters in the instance profile.
  
  For example, increase abap/heap_area_total and abap/heap_area_dia parameters.
  
  
  Monitor Workload: Use transaction codes like ST03N or ST06 to monitor system performance and workload. Identify peak times and adjust resources accordingly.
  Optimize Configuration: Review the SAP memory configuration and ensure it aligns with best practices. Adjust parameters based on the specific needs of your environment.
  Check Operating System Settings: Ensure that the operating system is configured to allow sufficient memory for the SAP instance. This may involve adjusting kernel parameters or system limits.
  Database Tuning: Ensure that the database is properly tuned for performance and can handle the memory requirements of the SAP application.
  Review Logs: Check the SAP system logs (transaction SM21) and developer traces (transaction ST22) for any additional errors or warnings that may provide more context on the issue.
  
  Related Information:
  
  SAP Notes: Check for relevant SAP Notes that may address specific issues related to VIRT244. SAP Notes often provide patches or configuration recommendations.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have implemented.
  Performance Monitoring Tools: Utilize SAP's performance monitoring tools to gain insights into memory usage and identify bottlenecks.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with SAP support for further assistance.