How To Fix DB02112 - db_block_buffers. Blocks in the DB buffer cache. Default: <8960.

SAP Error Message - Details

• Message type: E = Error

• Message class: DB02 - For Oracle Component of the Database Monitor

• Message number: 112

• Message text: db_block_buffers. Blocks in the DB buffer cache. Default: <8960.

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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Smart SAP Assistant

• What is the cause and solution for SAP error message DB02112 - db_block_buffers. Blocks in the DB buffer cache. Default: <8960. ?

  The SAP error message DB02112 typically relates to the database buffer cache configuration in an SAP system. This error indicates that the number of blocks in the database buffer cache is not set correctly or is insufficient for the workload of the SAP system. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Insufficient Buffer Cache Size: The database buffer cache may not be large enough to hold the frequently accessed data blocks, leading to performance issues.
  Configuration Mismatch: The configuration settings for the database buffer cache may not align with the actual memory available on the server.
  Increased Workload: A sudden increase in the workload or data volume can lead to the existing buffer cache being inadequate.
  
  Solution:
  
  
  Increase Buffer Cache Size:
  
  You can increase the size of the database buffer cache by modifying the relevant parameters in the database configuration. For example, in Oracle, you would adjust the DB_BLOCK_BUFFERS parameter.
  Ensure that the new size is within the limits of the available memory on the server.
  
  
  
  Check Database Parameters:
  
  Review the database parameters related to memory allocation. For Oracle databases, parameters like SGA_TARGET and DB_BLOCK_SIZE may also need to be considered.
  Use transaction codes like DB02 in SAP to monitor database performance and buffer cache usage.
  
  
  
  Monitor Performance:
  
  Use performance monitoring tools to analyze the database performance and identify if the buffer cache is a bottleneck.
  Look for metrics such as cache hit ratio to determine if the buffer cache is effectively utilized.
  
  
  
  Consult Documentation:
  
  Refer to the SAP and database vendor documentation for best practices on configuring the buffer cache size based on your specific workload and system architecture.
  
  
  
  Database Tuning:
  
  Consider performing database tuning to optimize performance. This may include analyzing SQL queries, indexing strategies, and other performance-related configurations.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to database performance and buffer cache settings for specific recommendations and updates.
  Database Documentation: Refer to the documentation for your specific database (e.g., Oracle, SQL Server, HANA) for detailed instructions on configuring memory parameters.
  SAP Community: Engage with the SAP Community forums for insights and experiences shared by other users who may have encountered similar issues.
  
  Conclusion:
  Addressing the DB02112 error involves increasing the database buffer cache size and ensuring that the configuration aligns with the system's workload. Regular monitoring and tuning can help maintain optimal performance and prevent similar issues in the future.