How To Fix VIRT104 - Minimum of Memory Available for Virtual Server (Reserved)

SAP Error Message - Details

• Message type: E = Error

• Message class: VIRT - Virtualization Monitoring

• Message number: 104

• Message text: Minimum of Memory Available for Virtual Server (Reserved)

What causes this issue?

The amount of memory that is reserved for use by the virtual system.
On VMware, this is called 'Reserved Memory'.

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 VIRT104 - Minimum of Memory Available for Virtual Server (Reserved) ?

  The SAP error message VIRT104: Minimum of Memory Available for Virtual Server (Reserved) typically indicates that the virtual server does not have enough memory allocated to it to meet the requirements of the SAP application or the underlying operating system. This can occur in environments where SAP is running on virtual machines, such as those hosted on VMware, Hyper-V, or other virtualization platforms.
  Cause:
  
  Insufficient Memory Allocation: The virtual machine (VM) may not have enough RAM allocated to it based on the requirements of the SAP application.
  Resource Contention: Other VMs on the same host may be consuming a significant amount of memory, leading to insufficient resources for the SAP VM.
  Configuration Issues: The configuration settings for the virtual server may not be optimized for the workload, leading to memory shortages.
  Memory Limits: There may be limits set on the VM that restrict the amount of memory it can use.
  
  Solution:
  
  
  Increase Memory Allocation:
  
  Access the virtualization management console (e.g., VMware vSphere, Hyper-V Manager).
  Locate the VM running the SAP application.
  Increase the allocated memory to meet or exceed the minimum requirements specified by SAP.
  
  
  
  Optimize Resource Allocation:
  
  Review the resource allocation for all VMs on the host to ensure that the SAP VM has sufficient resources.
  Consider adjusting the memory allocation for other VMs if they are over-provisioned.
  
  
  
  Check SAP Memory Settings:
  
  Review the SAP instance profile parameters related to memory (e.g., abap/heap_area_dia, abap/heap_area_nondia, etc.) to ensure they are set appropriately for the available resources.
  
  
  
  Monitor Memory Usage:
  
  Use monitoring tools to track memory usage on the VM and the host to identify any spikes or trends that may indicate resource issues.
  
  
  
  Review Virtualization Settings:
  
  Ensure that the virtualization settings (such as memory reservation, limits, and shares) are configured correctly to allow the SAP VM to utilize the necessary resources.
  
  
  
  Consult SAP Documentation:
  
  Refer to the SAP Notes and documentation for specific memory requirements and recommendations for your version of SAP.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional guidance or updates related to memory management and configuration.
  System Requirements: Review the official SAP system requirements for the specific version you are using to ensure compliance with memory and hardware specifications.
  Performance Tuning: Consider performance tuning for the SAP application, which may involve adjusting various parameters to optimize memory usage.
  
  By addressing the memory allocation and configuration issues, you should be able to resolve the VIRT104 error and ensure that your SAP application runs smoothly.