How To Fix VIRT402 - Virtual CPUs

SAP Error Message - Details

• Message type: E = Error

• Message class: VIRT - Virtualization Monitoring

• Message number: 402

• Message text: Virtual CPUs

What causes this issue?

On Hyper-V, this is the total number of virtual processors defined at
hypervisor level.

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 VIRT402 - Virtual CPUs ?

  The SAP error message VIRT402 typically relates to issues with virtual CPUs (vCPUs) in a virtualized environment, particularly when using SAP applications on platforms like VMware, Hyper-V, or other virtualization technologies. This error can occur due to various reasons, including resource allocation issues, configuration problems, or limitations imposed by the underlying infrastructure.
  Cause:
  
  Insufficient vCPUs: The virtual machine (VM) may not have enough virtual CPUs allocated to meet the requirements of the SAP application.
  Overcommitment of Resources: If the hypervisor has overcommitted CPU resources, it may lead to performance issues and trigger this error.
  Configuration Issues: Incorrect configuration of the VM or the hypervisor settings can lead to this error.
  Licensing Issues: Sometimes, licensing restrictions on the number of vCPUs can also cause this error.
  SAP Kernel Limitations: The version of the SAP kernel being used may have limitations regarding the number of vCPUs it can effectively utilize.
  
  Solution:
  
  Increase vCPU Allocation: Check the current allocation of vCPUs to the VM and increase it if necessary. Ensure that it meets the minimum requirements specified by SAP for the application you are running.
  Review Resource Allocation: Ensure that the hypervisor is not overcommitted on CPU resources. Monitor the performance and adjust the allocation as needed.
  Check Configuration Settings: Review the VM and hypervisor settings to ensure they are correctly configured for optimal performance.
  Update SAP Kernel: If you are using an older version of the SAP kernel, consider updating it to a newer version that may have better support for vCPUs.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide guidance on configuration best practices.
  Monitor Performance: Use monitoring tools to analyze CPU usage and performance metrics to identify any bottlenecks or issues that may be causing the error.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for guidelines on system requirements and best practices for configuring SAP applications in virtualized environments.
  Hypervisor Documentation: Consult the documentation for the specific hypervisor you are using (e.g., VMware, Hyper-V) for recommendations on CPU allocation and performance tuning.
  SAP Community: Engage with the SAP Community forums to seek advice from other users who may have encountered similar issues.
  
  If the problem persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.