How To Fix VIRT235 - Useable 16GB Pages

VIRT235 - Overview

• Message type: E = Error

• Message class: VIRT - Virtualization Monitoring

• Message number: 235

• Message text: Useable 16GB Pages

What causes this issue?

The number of immediately available 16GB pages for applications.

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 VIRT235 - Useable 16GB Pages ?

  The SAP error message VIRT235, which indicates "Useable 16GB Pages," typically relates to memory management issues in the SAP system, particularly in environments that utilize large pages for memory allocation. This error can occur in systems that are configured to use large memory pages (16GB pages) but are unable to allocate them due to insufficient resources or misconfiguration.
  
  Cause:
  
  Insufficient Memory: The system may not have enough physical memory available to allocate the required large pages.
  
  Configuration Issues: The SAP system or the underlying operating system may not be configured correctly to support large pages.
  Operating System Limitations: Some operating systems have limitations on the number of large pages that can be allocated or may require specific settings to enable large page support.
  Kernel Parameters: The kernel parameters related to memory management may not be set correctly, leading to issues with large page allocation.
  
  
  Solution:
  
  Check Memory Availability: Ensure that the server has enough physical memory installed