How To Fix VIRT366 - Max. total phys. IIP Usage

SAP Error Message - Details

• Message type: E = Error

• Message class: VIRT - Virtualization Monitoring

• Message number: 366

• Message text: Max. total phys. IIP Usage

Maximum total utilization of the physical processors(IIP) 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 VIRT366 - Max. total phys. IIP Usage ?

  The SAP error message VIRT366 indicates that the maximum total physical IIP (Integrated Information Processing) usage has been exceeded. This typically occurs in environments where SAP is running on virtualized infrastructure, and it relates to the limits set on the physical resources allocated to the SAP system.
  Cause:
  
  Resource Limits: The error is often caused by exceeding the configured limits for physical memory usage in the SAP system. This can happen if the system is under heavy load or if there are too many concurrent users or processes consuming memory.
  Configuration Issues: Incorrect configuration of the SAP instance parameters related to memory allocation can lead to this error.
  Virtualization Constraints: If the SAP system is running on a virtual machine, the underlying hypervisor may have resource limits that are being hit.
  
  Solution:
  
  
  Increase Memory Allocation: If possible, increase the physical memory allocated to the SAP instance. This can be done through the virtualization platform (e.g., VMware, Hyper-V) settings.
  
  
  Adjust SAP Parameters: Review and adjust the SAP memory parameters in the instance profile. Key parameters to check include:
  
  abap/heap_area_dia
  abap/heap_area_nondia
  abap/heap_area_total
  rdisp/PG_MAXFS
  rdisp/PG_MAXFS
  rdisp/size
  
  Make sure these parameters are set appropriately for your workload.
  
  
  Monitor and Optimize Workload: Use SAP transaction codes like ST03N (Workload Analysis) and ST06 (Operating System Monitor) to analyze the workload and identify any processes that are consuming excessive memory. Optimize or limit these processes if necessary.
  
  
  Check for Memory Leaks: Investigate if there are any memory leaks in custom code or third-party add-ons that could be consuming excessive memory.
  
  
  Restart the Instance: In some cases, a simple restart of the SAP instance can help clear up memory issues temporarily.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to memory management and performance tuning for your specific version of SAP. These notes often provide guidance on best practices and configuration settings.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have implemented.
  Documentation: Review the official SAP documentation for guidelines on memory management and performance tuning.
  
  If the problem persists after trying the above solutions, it may be necessary to engage SAP support for further assistance.