How To Fix DBACK027 - Check database connection '&1'

SAP Error Message - Details

• Message type: E = Error

• Message class: DBACK - DBA Checks

• Message number: 027

• Message text: Check database connection '&1'

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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Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

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Smart SAP Assistant

• What is the cause and solution for SAP error message DBACK027 - Check database connection '&1' ?

  The SAP error message DBACK027, which states "Check database connection '&1'", typically indicates an issue with the database connection in the SAP system. This error can arise due to various reasons, and here are some common causes, potential solutions, and related information:
  Causes:
  
  Database Unavailability: The database server may be down or unreachable due to network issues.
  Incorrect Connection Parameters: The connection parameters (like hostname, port, database name, user credentials) may be incorrect or misconfigured.
  Database Configuration Issues: There may be issues with the database configuration or settings that prevent a successful connection.
  Firewall or Security Settings: Firewalls or security settings may be blocking the connection to the database.
  Resource Limitations: The database server may be experiencing resource limitations (e.g., memory, CPU) that prevent new connections.
  Database Driver Issues: There may be issues with the database driver or client software used to connect to the database.
  
  Solutions:
  
  Check Database Status: Ensure that the database server is up and running. You can do this by trying to connect to the database using a database client or command line.
  Verify Connection Parameters: Double-check the connection parameters in the SAP system configuration (e.g., DB connection settings in the SAP profile or transaction DBACOCKPIT).
  Network Connectivity: Test the network connectivity between the SAP application server and the database server. Use tools like ping or telnet to check connectivity.
  Review Firewall Settings: Ensure that any firewalls or security groups allow traffic on the database port.
  Check Database Logs: Review the database logs for any errors or warnings that might indicate why the connection is failing.
  Restart Services: If the database is running but still not connecting, consider restarting the database service or the SAP application server.
  Update Database Drivers: Ensure that the database drivers are up to date and compatible with the version of SAP you are using.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the DBACK027 error. SAP Notes can provide specific guidance based on the version of SAP and the database being used.
  Transaction Codes: Use transaction codes like DBACOCKPIT to monitor database connections and performance.
  Documentation: Refer to the official SAP documentation for your specific database (e.g., Oracle, SQL Server, HANA) for configuration and troubleshooting guidelines.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP Basis team or database administrator for further assistance.