How To Fix DB6PM159 - System buffer pool &1 must not be deleted

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 159

• Message text: System buffer pool &1 must not be deleted

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DB6PM159 - System buffer pool &1 must not be deleted ?

  The SAP error message DB6PM159 indicates that a specific system buffer pool (denoted by &1) cannot be deleted. This error typically arises in the context of database management within SAP systems, particularly when dealing with buffer pools in the database.
  Cause:
  
  Active Buffer Pool: The buffer pool in question is currently active and in use by the database. Deleting an active buffer pool can lead to system instability or data loss.
  Configuration Issues: There may be configuration settings that prevent the deletion of certain buffer pools, especially if they are critical for system performance.
  Dependencies: Other database objects or processes may depend on the buffer pool, making it impossible to delete without first addressing those dependencies.
  
  Solution:
  
  Check Buffer Pool Status: Verify if the buffer pool is currently in use. You can do this by checking the database management tools or SAP transaction codes related to database administration.
  Stop Related Processes: If the buffer pool is in use, you may need to stop any processes or applications that are utilizing it before attempting to delete it.
  Review Configuration: Look into the database configuration settings to ensure that the buffer pool is not marked as critical or protected from deletion.
  Consult Documentation: Refer to the SAP documentation or your database vendor's guidelines for managing buffer pools to understand the implications of deleting a buffer pool.
  Use Alternative Methods: If you need to free up resources, consider resizing the buffer pool instead of deleting it, or creating a new buffer pool and migrating the workload.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific guidance or patches related to this error message. SAP Notes often contain valuable troubleshooting steps and updates.
  Database Documentation: Review the documentation for the specific database you are using (e.g., HANA, Oracle, SQL Server) for best practices on managing buffer pools.
  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 problem persists after following these steps, consider reaching out to SAP support for further assistance.