How To Fix D3189 - Database objects that are growing in number of extents

SAP Error Message - Details

• Message type: E = Error

• Message class: D3 - CCMS - DB2 on OS390

• Message number: 189

• Message text: Database objects that are growing in number of extents

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message D3189 - Database objects that are growing in number of extents ?

  The SAP error message D3189 indicates that a database object (such as a table or index) is growing in the number of extents. An extent is a contiguous block of storage space allocated for a database object. When a database object exceeds a certain size, it may require additional extents, which can lead to performance issues and fragmentation.
  Cause:
  
  High Volume of Data: The primary cause of this error is that the database object is experiencing a high volume of data inserts or updates, leading to the allocation of additional extents.
  Improper Sizing: The initial size of the database object may have been set too small, causing it to grow rapidly and require more extents.
  Fragmentation: Over time, as data is deleted or updated, fragmentation can occur, leading to inefficient use of space and increased extent allocation.
  Database Configuration: The database configuration settings, such as the extent size or growth settings, may not be optimal for the workload.
  
  Solution:
  
  Reorganize the Database Object: You can reorganize the affected table or index to reduce fragmentation and consolidate extents. This can be done using database-specific commands (e.g., ALTER TABLE ... MOVE in Oracle).
  Increase Initial Size: If the object is frequently growing, consider increasing its initial size to accommodate more data without requiring additional extents.
  Adjust Growth Settings: Modify the growth settings for the database object to allow for larger increments when it grows, which can help reduce the number of extents.
  Monitor and Optimize: Regularly monitor the database for growth patterns and optimize the schema and indexes as necessary. Consider archiving old data if applicable.
  Database Maintenance: Perform regular database maintenance tasks, such as updating statistics and rebuilding indexes, to ensure optimal performance.
  
  Related Information:
  
  Database Management System (DBMS): The specific steps to resolve this issue may vary depending on the DBMS being used (e.g., Oracle, SQL Server, etc.).
  SAP Notes: Check SAP Notes for any specific recommendations or patches related to this error message.
  Performance Monitoring Tools: Utilize performance monitoring tools to analyze database performance and identify objects that are growing excessively.
  Documentation: Refer to the official documentation for your specific database system for best practices on managing extents and optimizing database performance.
  
  By addressing the underlying causes and implementing the suggested solutions, you can mitigate the impact of the D3189 error and improve the performance of your SAP system.