How To Fix HH056 - Check/apply the operating system patches

SAP Error Message - Details

• Message type: E = Error

• Message class: HH - (Long) text for check tool 'infcfgcheck'

• Message number: 056

• Message text: Check/apply the operating system patches

What causes this issue?

The message 'KAIO 'out of OS resources' was found in the Informix
Online logfile after the last time the Online Server was started
(KAIO means 'Kernel I/O'). This indicates that one or more operating
system patches were not yet applied.

System Response

How to fix this error?

Please refer to Notes 48802 and 48793 and proceed as described there.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message HH056 - Check/apply the operating system patches ?

  The SAP error message HH056, which states "Check/apply the operating system patches," typically indicates that there are missing or outdated operating system patches that are required for the proper functioning of the SAP system. This error can arise during system installation, upgrade, or when performing certain operations that require specific OS-level support.
  Cause:
  
  Outdated Operating System: The operating system on which the SAP system is running may not have the latest patches or updates installed.
  Compatibility Issues: The version of the SAP software may require specific patches or updates that are not present on the operating system.
  Security Vulnerabilities: Missing patches may expose the system to security vulnerabilities, which SAP aims to mitigate by prompting for updates.
  
  Solution:
  
  Check SAP Notes: Look for relevant SAP Notes that provide information about required operating system patches for your specific version of SAP. You can search for these notes in the SAP Support Portal.
  Update Operating System: 
  
  Identify the operating system version you are using (e.g., Windows, Linux, AIX).
  Check the vendor's website (e.g., Microsoft, Red Hat, SUSE) for the latest patches and updates.
  Apply the necessary patches as recommended by the OS vendor.
  
  
  Reboot the System: After applying the patches, it may be necessary to reboot the server to ensure that all changes take effect.
  Verify Installation: After rebooting, verify that the patches have been successfully applied and check if the error persists.
  Consult Documentation: Refer to the SAP installation or upgrade guide for any specific OS requirements related to your SAP version.
  
  Related Information:
  
  SAP Support Portal: Access to SAP Notes and documentation that may provide specific guidance on required patches.
  Operating System Documentation: Check the documentation for your specific operating system for instructions on how to apply patches.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  System Logs: Review system logs for additional error messages or warnings that may provide more context about the issue.
  
  By following these steps, you should be able to resolve the HH056 error and ensure that your SAP system is running on a properly patched operating system.