How To Fix DB6PM821 - REORGCHK for all tables has been started in the background

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 821

• Message text: REORGCHK for all tables has been started in the background

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DB6PM821 - REORGCHK for all tables has been started in the background ?

  The SAP error message DB6PM821 indicates that a reorganization check (REORGCHK) for all tables has been initiated in the background. This message typically arises in the context of database management and performance optimization within SAP systems, particularly when using databases like SAP HANA, Oracle, or others.
  Cause:
  
  Database Fragmentation: Over time, database tables can become fragmented due to frequent insertions, updates, and deletions. This fragmentation can lead to performance degradation.
  Space Management: The database may be running low on space, prompting a reorganization to reclaim unused space.
  Scheduled Maintenance: The system may have a scheduled job that automatically checks for the need for reorganization of database tables.
  Performance Issues: If the system is experiencing performance issues, a reorganization check may be triggered to optimize the database.
  
  Solution:
  
  Monitor the Background Job: Check the status of the background job that is performing the REORGCHK. You can do this using transaction codes like SM37 (Job Monitoring) to see if it is still running or if it has completed successfully.
  Review Job Logs: After the job completes, review the job logs for any errors or warnings that may indicate issues during the reorganization check.
  Perform Reorganization: If the REORGCHK indicates that reorganization is necessary, you may need to perform a database reorganization. This can often be done through database administration tools or specific SAP transactions, depending on your database type.
  Database Maintenance: Regularly schedule database maintenance tasks, including reorganization checks, to prevent fragmentation and performance issues.
  Consult Documentation: Refer to the SAP documentation or your database vendor's guidelines for specific instructions on performing reorganization tasks.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as DB02 (Database Performance Analysis) and DBACOCKPIT (Database Administration Cockpit) for monitoring and managing database performance.
  Database-Specific Tools: Depending on your database (e.g., Oracle, HANA, SQL Server), there may be specific tools or commands to perform reorganization and maintenance tasks.
  SAP Notes: Check SAP Notes for any known issues or updates related to the REORGCHK message and database maintenance.
  Performance Tuning: Consider implementing performance tuning measures, such as indexing and partitioning, to improve overall database performance.
  
  If the issue persists or if you encounter specific errors during the reorganization process, it may be beneficial to consult with your database administrator or SAP support for further assistance.