How To Fix VIRT206 - Pool Maximum Size

SAP Error Message - Details

• Message type: E = Error

• Message class: VIRT - Virtualization Monitoring

• Message number: 206

• Message text: Pool Maximum Size

What causes this issue?

Denotes the maximum number of physical CPU's available in the shared
processor pool to which this LPAR is assigned. This metric is specific
to Shared Processor LPARs.

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

System Response

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 VIRT206 - Pool Maximum Size ?

  The SAP error message VIRT206, which indicates "Pool Maximum Size," typically arises when the memory pool allocated for a particular process or transaction in the SAP system has reached its maximum limit. This can lead to performance issues or failures in processing requests.
  Cause:
  
  Memory Limit Reached: The error occurs when the memory pool for a specific application or process exceeds the configured maximum size.
  High Load: A sudden increase in user activity or data processing can lead to excessive memory consumption.
  Inefficient Code: Poorly optimized ABAP code or inefficient database queries can consume more memory than necessary.
  Configuration Issues: Incorrect configuration settings for memory management in the SAP system can lead to this error.
  
  Solution:
  
  
  Increase Pool Size:
  
  Adjust the memory pool settings in the SAP system configuration. This can be done by modifying the instance profile parameters related to memory management, such as abap/heap_area_dia, abap/heap_area_nondia, and abap/heap_area_total.
  Use transaction RZ10 to change the profile parameters and then restart the instance for the changes to take effect.
  
  
  
  Optimize Code:
  
  Review and optimize ABAP programs and database queries to reduce memory consumption. Look for inefficient loops, large internal tables, and unnecessary data retrieval.
  
  
  
  Monitor System Performance:
  
  Use transaction ST02 (Tune Summary) to monitor memory usage and identify any bottlenecks or areas where memory is being consumed excessively.
  Analyze the workload using transaction ST03N to understand peak usage times and adjust resources accordingly.
  
  
  
  Check for Memory Leaks:
  
  Investigate if there are any memory leaks in custom code or third-party add-ons that could be causing excessive memory usage.
  
  
  
  Adjust User Load:
  
  If possible, manage user load by scheduling heavy processing jobs during off-peak hours to reduce the immediate demand on memory resources.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to VIRT206 for any specific patches or updates that may address known issues.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  Documentation: Refer to SAP documentation on memory management and performance tuning for best practices.
  
  By addressing the underlying causes and implementing the suggested solutions, you can mitigate the occurrence of the VIRT206 error and improve the overall performance of your SAP system.