How To Fix HH068 - Check the 'rawdevice' links manually also

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 068

• Message text: Check the 'rawdevice' links manually also

What causes this issue?

This message is not an error!
On the SINIX operating system platform, it is not possible to check
whether the rawdevice links are unique completely automatically since
the 'slices' do not have to be disjunct within a 'rdisk'!

System Response

How to fix this error?

Manually check (or have your systsem administrator check - [root
authorization required!]) all rawdevice links for uniqueness for your
own safety. Overlapping of the 'slices' within a 'rdisk' is displayed
by the command 'dkpart -l <any rdisk slice>' (e.g. 'dkpart -l
/dev/ios0/rdisk013s0' as user 'root'). You can find the assignment
between the virtual disks and 'rdisk-slices' in the file '/etc/dktab'.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message HH068 - Check the 'rawdevice' links manually also ?

  The SAP error message HH068 typically indicates an issue related to the raw device links in the context of SAP's database or storage configuration. This error often arises during the setup or configuration of SAP systems, particularly when dealing with database storage on raw devices.
  Cause:
  The error HH068 suggests that there is a problem with the raw device links that SAP is trying to access. This could be due to several reasons:
  
  Incorrect Configuration: The raw device links may not be correctly configured in the SAP system or the underlying operating system.
  Missing Links: The raw device links may not exist or may have been deleted or moved.
  Permissions Issues: The user or service account running the SAP instance may not have the necessary permissions to access the raw devices.
  Device Availability: The raw devices may not be available or properly initialized.
  
  Solution:
  To resolve the HH068 error, you can follow these steps:
  
  
  Check Raw Device Links:
  
  Manually verify the existence of the raw device links. You can do this by using commands like ls -l in the terminal to check the links and their targets.
  Ensure that the links point to the correct device files.
  
  
  
  Verify Permissions:
  
  Check the permissions of the raw device files and ensure that the SAP instance user has the necessary read/write permissions.
  
  
  
  Recreate Links:
  
  If the links are missing or incorrect, you may need to recreate them. This can typically be done using the ln command in Unix/Linux systems. For example:
  ln -s /dev/sdX /path/to/rawdevice
  
  Replace /dev/sdX with the actual device file and /path/to/rawdevice with the desired link path.
  
  
  
  Check Device Availability:
  
  Ensure that the raw devices are properly initialized and available. You can use commands like fdisk -l or lsblk to list available devices.
  
  
  
  Review SAP Configuration:
  
  Check the SAP configuration files (like sapinst or database configuration files) to ensure that the raw devices are correctly referenced.
  
  
  
  Restart SAP Services:
  
  After making changes, restart the SAP services to ensure that the changes take effect.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to HH068 for any specific guidance or patches that may address this issue.
  Documentation: Refer to the SAP installation and configuration guides for your specific database and operating system for detailed instructions on setting up raw devices.
  Logs: Review the SAP application logs and system logs for any additional error messages that may provide more context about the issue.
  
  If the problem persists after following these steps, consider reaching out to SAP support or consulting with a system administrator who has experience with SAP installations and configurations.