How To Fix SDB2U105 - START DATABASE & failed

SAP Error Message - Details

• Message type: E = Error

• Message class: SDB2U - DB2/390: Messages for Function Group SDB2U

• Message number: 105

• Message text: START DATABASE & failed

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.

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 SDB2U105 - START DATABASE & failed ?

  The SAP error message SDB2U105, which indicates that the "START DATABASE & failed," typically occurs in the context of SAP systems that use a DB2 database. This error can arise due to various reasons, and understanding the cause is crucial for troubleshooting and resolving the issue.
  Possible Causes:
  
  Database Not Running: The DB2 database instance may not be running or may have crashed.
  Configuration Issues: There may be misconfigurations in the database settings or the SAP system configuration.
  Insufficient Resources: The server may not have enough resources (CPU, memory, disk space) to start the database.
  File System Issues: There could be issues with the file system where the database files are stored, such as permissions or disk space.
  Corrupted Database: The database may be corrupted, preventing it from starting.
  Network Issues: If the database is hosted on a different server, network connectivity issues could prevent it from starting.
  
  Solutions:
  
  
  Check Database Status: Use DB2 commands to check the status of the database. You can use the command:
  db2 list db directory
  This will show you the status of the databases.
  
  
  Start the Database Manually: If the database is not running, try to start it manually using:
  db2 start database <database_name>
  
  
  Check Logs: Review the DB2 diagnostic logs for any error messages that can provide more context on why the database failed to start. The logs can typically be found in the db2diag.log file.
  
  
  Resource Check: Ensure that the server has sufficient resources. Check CPU, memory, and disk space usage. You can use commands like top, df -h, and free -m to monitor resource usage.
  
  
  File System Permissions: Verify that the DB2 instance has the necessary permissions to access the database files and directories.
  
  
  Database Recovery: If the database is corrupted, you may need to perform a recovery operation. This could involve restoring from a backup or using DB2 recovery tools.
  
  
  Network Configuration: If applicable, check the network configuration to ensure that there are no connectivity issues between the SAP application server and the DB2 database server.
  
  
  Consult Documentation: Refer to the official SAP and DB2 documentation for specific troubleshooting steps related to your version and configuration.
  
  
  Related Information:
  
  DB2 Commands: Familiarize yourself with common DB2 commands for managing databases, such as db2stop, db2start, and db2diag.
  SAP Notes: Check SAP Notes for any known issues or patches related to the error message SDB2U105.
  Support: If the issue persists, consider reaching out to SAP support or your database administrator for further assistance.
  
  By following these steps, you should be able to identify the cause of the SDB2U105 error and implement a solution to resolve it.