How To Fix XT019 - Backup domain controller &1 invalid (new backup controller: &2)

SAP Error Message - Details

• Message type: E = Error

• Message class: XT - Transport Management System

• Message number: 019

• Message text: Backup domain controller &1 invalid (new backup controller: &2)

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message XT019 - Backup domain controller &1 invalid (new backup controller: &2) ?

  The SAP error message XT019 indicates an issue with the configuration of the backup domain controller in a system landscape. This error typically arises when the system is unable to recognize or validate the specified backup domain controller.
  Cause:
  The error message "Backup domain controller &1 invalid (new backup controller: &2)" suggests that:
  
  The specified backup domain controller (&1) is not valid or does not exist in the system.
  The new backup controller (&2) that you are trying to set is either not configured correctly or is not reachable.
  There may be issues with the network connectivity or DNS resolution between the SAP system and the backup domain controller.
  The backup domain controller may not be properly registered in the SAP system.
  
  Solution:
  To resolve the XT019 error, you can follow these steps:
  
  
  Check Configuration:
  
  Verify the configuration of the backup domain controller in the SAP system. Ensure that the name and address of the backup controller are correctly specified.
  
  
  
  Network Connectivity:
  
  Ensure that there is proper network connectivity between the SAP system and the backup domain controller. You can use tools like ping or traceroute to check connectivity.
  
  
  
  DNS Resolution:
  
  Check if the hostname of the backup domain controller can be resolved correctly. You can use the nslookup command to verify DNS resolution.
  
  
  
  SAP Profile Parameters:
  
  Review the SAP profile parameters related to the domain controller configuration. Ensure that the parameters are set correctly.
  
  
  
  SAP Notes:
  
  Check for any relevant SAP Notes that may address this specific error. SAP frequently releases notes that provide solutions or workarounds for known issues.
  
  
  
  System Logs:
  
  Review the system logs (transaction SM21) for any additional error messages or warnings that may provide more context about the issue.
  
  
  
  Restart Services:
  
  If changes are made to the configuration, consider restarting the relevant SAP services or the entire SAP system to ensure that the changes take effect.
  
  
  
  Consult Documentation:
  
  Refer to the official SAP documentation for guidance on configuring backup domain controllers and troubleshooting related issues.
  
  
  
  Related Information:
  
  SAP Basis Administration: Understanding the role of domain controllers in SAP landscapes is crucial for effective system administration.
  SAP Community: Engaging with the SAP Community can provide insights from other users who may have encountered similar issues.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance, providing them with detailed information about the error and the steps you have taken.
  
  By following these steps, you should be able to identify and resolve the issue related to the XT019 error message in your SAP system.