How To Fix VIRT425 - Dynamic Memory Enabled

SAP Error Message - Details

• Message type: E = Error

• Message class: VIRT - Virtualization Monitoring

• Message number: 425

• Message text: Dynamic Memory Enabled

What causes this issue?

This value is valid only on Hyper-V.
If this value is "True" the Dynamic Memory feature is enabled for this
VM. If this value is "False" either the Hyper-V host or the VM doesn't
support Dynamic Memory or the memory management settings for this VM are
set to "static".

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 VIRT425 - Dynamic Memory Enabled ?

  The SAP error message VIRT425, which indicates "Dynamic Memory Enabled," typically relates to issues with the configuration of the SAP system's memory management settings, particularly in environments where dynamic memory allocation is used.
  Cause:
  
  Dynamic Memory Configuration: The error often arises when the SAP system is configured to use dynamic memory allocation, but there are issues with the settings or the environment that prevent it from functioning correctly.
  Insufficient Memory: The system may not have enough physical or virtual memory available to allocate dynamically as required by the SAP application.
  Kernel or Version Issues: Sometimes, the error can be related to specific versions of the SAP kernel or other components that may not support dynamic memory allocation properly.
  
  Solution:
  
  Check Memory Settings: Review the memory settings in the SAP profile parameters. Ensure that the parameters related to memory allocation (like abap/heap_area_dia, abap/heap_area_nondia, etc.) are set correctly.
  Increase Memory Allocation: If the system is running low on memory, consider increasing the physical or virtual memory available to the SAP instance.
  Disable Dynamic Memory: If dynamic memory allocation is not necessary for your environment, you can disable it by adjusting the relevant profile parameters. This can be done by setting the parameter rdisp/memory_limit to a fixed value instead of allowing dynamic allocation.
  Kernel Update: Ensure that you are using a supported and up-to-date version of the SAP kernel. If necessary, update the kernel to the latest version that supports dynamic memory management.
  Check for Notes: Look for SAP Notes related to VIRT425 or dynamic memory issues. SAP frequently releases notes that provide fixes or workarounds for known issues.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for detailed information on memory management and configuration.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues and can provide insights or solutions.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance, especially if it impacts production systems.
  
  By following these steps, you should be able to diagnose and resolve the VIRT425 error related to dynamic memory in your SAP environment.