How To Fix VIRT243 - 64KB Page Outs

SAP Error Message - Details

• Message type: E = Error

• Message class: VIRT - Virtualization Monitoring

• Message number: 243

• Message text: 64KB Page Outs

What causes this issue?

The amount of 64MB 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 VIRT243 - 64KB Page Outs ?

  The SAP error message VIRT243, which indicates "64KB Page Outs," is related to memory management in the SAP system, particularly in the context of virtual memory and paging. This error typically occurs when the SAP application server is running low on memory resources, leading to excessive paging activity. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Insufficient Memory: The SAP application server may not have enough physical memory (RAM) allocated to handle the workload, leading to excessive paging.
  High Workload: A sudden increase in user activity or background jobs can lead to memory exhaustion.
  Configuration Issues: Incorrect configuration of the SAP instance parameters or operating system settings can lead to inefficient memory usage.
  Memory Leaks: Certain applications or processes may have memory leaks, consuming more memory over time without releasing it.
  
  Solutions:
  
  Increase Physical Memory: If possible, add more RAM to the server to accommodate the workload.
  Optimize SAP Parameters: Review and adjust SAP memory parameters (like abap/heap_area_dia, abap/heap_area_nondia, etc.) to ensure they are set appropriately for your workload.
  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 bottlenecks.
  Check for Memory Leaks: Use tools like the SAP Memory Inspector or transaction ST02 (Tune Summary) to check for memory leaks in the system.
  Adjust Paging Settings: If the operating system allows, adjust the paging file size or settings to better accommodate the SAP workload.
  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.
  Upgrade Hardware: If the system consistently runs into memory issues, consider upgrading to a more powerful server or moving to a cloud-based solution that can scale resources as needed.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to VIRT243 for any specific recommendations or patches that may address the issue.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have implemented.
  System Monitoring: Regularly monitor system performance and memory usage to proactively address potential issues before they lead to errors.
  
  By addressing the underlying causes and implementing the suggested solutions, you can mitigate the occurrence of the VIRT243 error and improve the overall performance of your SAP system.