How To Fix DB6PM477 - Connection to system &1 not available; repair is not possible

SAP Error Message - Details

• Message type: E = Error

• Message class: DB6PM - DB2 UDB for UNIX, Windows: Performance Monitoring

• Message number: 477

• Message text: Connection to system &1 not available; repair is not possible

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

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.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message DB6PM477 - Connection to system &1 not available; repair is not possible ?

  The SAP error message DB6PM477 indicates that there is a problem with the connection to the specified database system (denoted by &1). This error typically arises when the database is not accessible, which can be due to various reasons. Here are some common causes, potential solutions, and related information:
  Causes:
  
  Database Server Down: The database server may be down or not running.
  Network Issues: There could be network connectivity issues between the SAP application server and the database server.
  Configuration Issues: Incorrect configuration settings in the SAP system or database connection parameters.
  Database Instance Not Available: The specific database instance may not be available or may have crashed.
  Firewall Restrictions: 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).
  
  Solutions:
  
  Check Database Status: Verify that the database server is up and running. You can do this by logging into the database server and checking its status.
  Network Connectivity: Test the network connection between the SAP application server and the database server. Use tools like ping or telnet to check connectivity.
  Review Configuration: Check the database connection parameters in the SAP system (e.g., DB connection settings in the SAP profile or transaction DBACOCKPIT).
  Restart Database: If the database instance is down, consider restarting it. Ensure that you have the necessary permissions and that it is safe to do so.
  Check Firewall Settings: Ensure that any firewalls between the SAP application server and the database server allow the necessary traffic.
  Monitor Resources: Check the resource usage on the database server to ensure it is not overloaded. If it is, consider optimizing queries or increasing resources.
  Review Logs: Check the SAP and database logs for any additional error messages or warnings that could provide more context about the issue.
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional troubleshooting steps.
  Database Documentation: Refer to the documentation for the specific database you are using (e.g., Oracle, SQL Server, HANA) for connection troubleshooting.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  
  If the issue persists after trying the above solutions, it may be necessary to involve your database administrator or SAP support for further assistance.