How To Fix VIRT306 - Number of ICF

SAP Error Message - Details

• Message type: E = Error

• Message class: VIRT - Virtualization Monitoring

• Message number: 306

• Message text: Number of ICF

What causes this issue?

Integrated Coupling Facility (ICF)
An ICF runs special code that is used to #couple# together multiple z/OS
systems into a cooperative environment.

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 VIRT306 - Number of ICF ?

  The SAP error message VIRT306 typically relates to issues with the Internet Communication Framework (ICF) in SAP systems. This error indicates that the number of ICF services has reached its limit, which can prevent new services from being created or existing services from being accessed.
  Cause:
  
  Exceeded Limit: The system has reached the maximum number of ICF services that can be created or activated. This limit can be defined in the system settings.
  Configuration Issues: There may be misconfigurations in the ICF settings or the services that are currently active.
  System Performance: High load or performance issues in the system can also lead to this error, as the system may not be able to handle additional ICF services.
  
  Solution:
  
  
  Check Active ICF Services:
  
  Use transaction code SICF to check the active ICF services. You can see which services are currently active and their status.
  Identify any unnecessary or redundant services that can be deactivated.
  
  
  
  Increase the Limit:
  
  If you need more ICF services than the current limit allows, you may need to increase the limit. This can typically be done in the system profile parameters.
  Look for parameters like icf/max_services and adjust the value accordingly. You may need to consult with your Basis team for this.
  
  
  
  Deactivate Unused Services:
  
  Deactivate any ICF services that are not in use. This can free up space for new services.
  You can deactivate services in the SICF transaction by right-clicking on the service and selecting "Deactivate".
  
  
  
  System Performance Check:
  
  Monitor system performance to ensure that it is not being overloaded. Check for any long-running processes or high resource usage that could be affecting ICF service availability.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional guidance.
  
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  SICF: To manage ICF services.
  SM21: To check system logs for any related errors.
  ST22: To check for dumps that might provide more context on the issue.
  
  
  
  Documentation: Review SAP documentation on ICF services for best practices and configuration guidelines.
  
  
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  
  If the problem persists after trying the above solutions, it may be necessary to involve SAP support for further assistance.