How To Fix VIRT049 - Configured swap size

SAP Error Message - Details

• Message type: E = Error

• Message class: VIRT - Virtualization Monitoring

• Message number: 049

• Message text: Configured swap size

What causes this issue?

Size of the configured primary swap space of fixed size

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 VIRT049 - Configured swap size ?

  The SAP error message VIRT049 typically relates to the virtual memory configuration of the SAP system, specifically concerning the swap space on the operating system. This error indicates that the configured swap size is insufficient for the needs of the SAP application, which can lead to performance issues or system instability.
  Cause:
  
  Insufficient Swap Space: The primary cause of the VIRT049 error is that the swap space configured on the server is less than the recommended or required amount for the SAP system to operate efficiently.
  High Memory Usage: If the SAP application is consuming a lot of memory, it may require more swap space to handle memory overflow.
  System Configuration Changes: Changes in system configuration, such as increased workload or additional applications, can lead to higher memory requirements.
  
  Solution:
  
  
  Increase Swap Space:
  
  Linux: You can increase the swap space by creating a new swap file or partition. For example, to create a new swap file:
  sudo fallocate -l 4G /swapfile
  sudo chmod 600 /swapfile
  sudo mkswap /swapfile
  sudo swapon /swapfile
  Then, add the swap file to /etc/fstab to make it permanent:
  /swapfile swap swap defaults 0 0
  
  Windows: Adjust the virtual memory settings in the system properties to increase the paging file size.
  
  
  
  Monitor Memory Usage: Use monitoring tools to keep an eye on memory usage and swap space utilization. This can help you anticipate when you might need to increase swap space again.
  
  
  Optimize SAP Configuration: Review and optimize the SAP memory parameters (like abap/heap_area_dia, abap/heap_area_nondia, etc.) to ensure that the application is using memory efficiently.
  
  
  System Restart: After making changes to the swap configuration, it may be necessary to restart the SAP system or the server for the changes to take effect.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to memory management and swap space for specific recommendations based on your SAP version and operating system.
  Operating System Documentation: Refer to the documentation for your operating system for detailed instructions on managing swap space.
  SAP Basis Team: If you are not familiar with system administration tasks, it is advisable to consult with your SAP Basis team or system administrator for assistance.
  
  By addressing the swap space issue, you can help ensure that your SAP system runs smoothly and efficiently.