How To Fix VIRT054 - Actual swap size

SAP Error Message - Details

• Message type: E = Error

• Message class: VIRT - Virtualization Monitoring

• Message number: 054

• Message text: Actual swap size

What causes this issue?

Actual size of total swap

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 VIRT054 - Actual swap size ?

  The SAP error message VIRT054, which refers to "Actual swap size," typically indicates an issue related to the virtual memory configuration of the SAP system. This error can arise when the actual swap size of the operating system is insufficient for the needs of the SAP application, leading to performance issues or system instability.
  Cause:
  
  Insufficient Swap Space: The operating system does not have enough swap space allocated to handle the memory requirements of the SAP system.
  Configuration Issues: The swap space may not be configured correctly, or the system may not be recognizing the allocated swap space.
  High Memory Usage: The SAP application may be consuming more memory than anticipated, leading to a need for more swap space.
  Operating System Limits: The operating system may have limits on the amount of swap space that can be allocated.
  
  Solution:
  
  
  Increase Swap Space:
  
  Check the current swap space using commands like swapon -s (Linux) or Get-VM (Windows PowerShell).
  If the swap space is insufficient, increase it by adding more swap files or partitions. For Linux, you can create a new swap file using the following commands:
  sudo fallocate -l 4G /swapfile
  sudo chmod 600 /swapfile
  sudo mkswap /swapfile
  sudo swapon /swapfile
  
  Ensure that the new swap space is added to /etc/fstab for persistence across reboots.
  
  
  
  Monitor Memory Usage:
  
  Use monitoring tools to analyze memory usage patterns in the SAP system. This can help identify if there are specific processes consuming excessive memory.
  Consider optimizing the SAP application or adjusting the configuration to reduce memory consumption.
  
  
  
  Review System Configuration:
  
  Ensure that the operating system is configured to allow sufficient swap space. Check system limits and configurations that may restrict swap usage.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may provide additional guidance or patches related to memory management and swap space.
  
  
  
  System Restart:
  
  In some cases, a system restart may help in reinitializing the memory and swap configurations.
  
  
  
  Related Information:
  
  Operating System Documentation: Refer to the documentation for your specific operating system for detailed instructions on managing swap space.
  SAP Basis Administration: Consult with your SAP Basis team for best practices in memory management and system configuration.
  Performance Tuning: Consider engaging in performance tuning activities to optimize the SAP system's memory usage.
  
  If the issue persists after taking these steps, it may be necessary to engage SAP support for further assistance.