How To Fix VIRT363 - Max. total phys. CP Usage

SAP Error Message - Details

• Message type: E = Error

• Message class: VIRT - Virtualization Monitoring

• Message number: 363

• Message text: Max. total phys. CP Usage

Maximum total utilization of the physical processors(CP) of this
physical host within the last collection interval.
This data is based on the total interval time of all physical processors
and includes LPAR management time.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message VIRT363 - Max. total phys. CP Usage ?

  The SAP error message VIRT363, which indicates "Max. total physical CP usage," typically arises in the context of SAP systems running on virtualized environments. This error suggests that the system has reached the maximum allowed physical CPU usage, which can lead to performance issues or system instability.
  Cause:
  
  Resource Limits: The virtual machine (VM) may have been configured with a limit on the maximum CPU resources it can utilize. If the workload exceeds this limit, the error will be triggered.
  High Workload: An increase in the number of transactions or background jobs can lead to high CPU usage, causing the system to hit the configured limits.
  Configuration Issues: Incorrect configuration of the SAP system or the underlying virtualization platform can lead to inefficient resource allocation.
  Inefficient Code: Poorly optimized ABAP code or inefficient queries can consume excessive CPU resources.
  
  Solution:
  
  Increase CPU Allocation: If the VM is hitting its CPU limits, consider increasing the number of virtual CPUs allocated to the VM. This can be done through the virtualization management interface (e.g., VMware vSphere, Hyper-V).
  Optimize Workload: Analyze the workload on the system. Identify and optimize any long-running or resource-intensive processes. This may involve tuning SQL queries, optimizing ABAP code, or adjusting batch job schedules.
  Monitor Performance: Use SAP transaction codes like ST03N (Workload Analysis) and ST06 (Operating System Monitor) to monitor CPU usage and identify bottlenecks.
  Adjust Configuration: Review the configuration settings for both the SAP system and the virtualization platform to ensure they are optimized for performance.
  Scaling: If the workload consistently exceeds the current capacity, consider scaling out by adding more instances or scaling up by upgrading the existing hardware.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional guidance or patches related to performance issues.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  Documentation: Review SAP documentation regarding system performance tuning and best practices for running SAP on virtualized environments.
  
  By addressing the underlying causes and implementing the suggested solutions, you can mitigate the VIRT363 error and improve the overall performance of your SAP system.