How To Fix VIRT109 - LAN Status: (Physical/Shared Pool)

SAP Error Message - Details

• Message type: E = Error

• Message class: VIRT - Virtualization Monitoring

• Message number: 109

• Message text: LAN Status: (Physical/Shared Pool)

Self-Explanatory Message

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To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message VIRT109 - LAN Status: (Physical/Shared Pool) ?

  The SAP error message VIRT109, which indicates a LAN status issue related to "Physical/Shared Pool," typically arises in the context of SAP's Virtual Memory Management. This error can occur when the system is unable to allocate sufficient memory resources for the operation being performed, often due to limitations in the physical or shared memory pool.
  Cause:
  
  Insufficient Memory Allocation: The system may not have enough physical memory or shared memory allocated to handle the current workload.
  Configuration Issues: Incorrect configuration settings for memory parameters in the SAP system can lead to this error.
  Resource Contention: Other processes or applications running on the server may be consuming memory resources, leading to contention.
  Memory Leaks: Long-running processes or poorly optimized code can lead to memory leaks, consuming available memory over time.
  
  Solution:
  
  
  Check Memory Configuration:
  
  Review the SAP memory parameters (e.g., abap/heap_area_dia, abap/heap_area_nondia, enque/table_size, etc.) in transaction RZ10 or RZ11.
  Ensure that the parameters are set according to the recommended values for your system's workload and available resources.
  
  
  
  Increase Physical/Shared Memory:
  
  If possible, increase the physical memory on the server or adjust the shared memory settings in the operating system.
  For UNIX/Linux systems, you may need to adjust kernel parameters related to shared memory (e.g., shmmax, shmmin, shmall, etc.).
  
  
  
  Monitor System Resources:
  
  Use monitoring tools to check memory usage and identify any processes that are consuming excessive resources.
  Tools like top, htop, or SAP's own monitoring tools can help identify memory bottlenecks.
  
  
  
  Optimize Code and Processes:
  
  Review custom ABAP code and background jobs for efficiency. Optimize any long-running processes that may be consuming excessive memory.
  Consider breaking down large batch jobs into smaller, more manageable tasks.
  
  
  
  Restart SAP System:
  
  In some cases, a restart of the SAP system may help clear up memory issues, especially if there are memory leaks.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes or updates that may address this specific error or provide additional guidance.
  
  
  
  Related Information:
  
  SAP Memory Management: Understanding how SAP manages memory can help in troubleshooting. Familiarize yourself with the different memory areas (heap, buffer, etc.) and their configurations.
  Operating System Settings: Ensure that the operating system settings for memory management are optimized for SAP workloads.
  SAP Basis Team: Collaborate with your SAP Basis team for insights and assistance in resolving memory-related issues.
  
  If the problem persists after trying the above solutions, it may be beneficial to engage SAP support for further assistance.