How To Fix RT861 - Physical CPU Entitlement

SAP Error Message - Details

• Message type: E = Error

• Message class: RT - Monitoring infrastructure MSG and alert texts

• Message number: 861

• Message text: Physical CPU Entitlement

What causes this issue?

The physical CPU entitlement is a guarantee that this number of physical
CPU's are available for use by the LPAR at all times. This guarantee
preempts any sharing of CPU's.

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 RT861 - Physical CPU Entitlement ?

  The SAP error message RT861, which refers to "Physical CPU Entitlement," typically arises in the context of SAP systems running on virtualized environments, particularly when using SAP's licensing model. This error indicates that the number of physical CPU cores allocated to the SAP system exceeds the entitlement based on the licensing agreement.
  Cause:
  
  Exceeding CPU Entitlement: The most common cause of this error is that the number of physical CPUs (or cores) assigned to the SAP instance exceeds what is allowed under the current SAP licensing agreement.
  Virtualization Issues: In virtualized environments, the way CPUs are allocated can sometimes lead to discrepancies between the actual physical CPUs and the virtual CPUs presented to the SAP system.
  Misconfiguration: Incorrect configuration of the SAP system or the underlying virtualization platform can also lead to this error.
  
  Solution:
  
  Review Licensing Agreement: Check your SAP licensing agreement to understand the number of physical CPUs you are entitled to use. This will help you determine if you need to reduce the number of CPUs or upgrade your license.
  Adjust CPU Allocation: If you find that you are exceeding your entitlement, you will need to reduce the number of physical CPUs allocated to the SAP instance. This can typically be done through your virtualization management console (e.g., VMware, Hyper-V).
  Consult SAP Support: If you are unsure about your licensing or how to adjust your CPU allocation, it may be beneficial to consult with SAP support or your SAP account representative for guidance.
  Monitor CPU Usage: Implement monitoring tools to keep track of CPU usage and ensure that you remain within your licensing limits in the future.
  
  Related Information:
  
  SAP Licensing: Understanding SAP's licensing model is crucial for compliance. SAP licenses are often based on the number of CPUs, users, or other metrics, depending on the specific product and deployment.
  Virtualization Best Practices: Familiarize yourself with best practices for configuring SAP systems in virtualized environments to avoid similar issues in the future.
  Documentation: Refer to SAP's official documentation for detailed information on licensing and system requirements, as well as guidelines for configuring SAP in virtual environments.
  
  By addressing the root cause of the RT861 error and ensuring compliance with licensing agreements, you can resolve the issue and prevent it from recurring.