How To Fix DB6PM719 - DBCFG - DFT_PREFETCH_SZ: value &1 not within permitted range

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 719

• Message text: DBCFG - DFT_PREFETCH_SZ: value &1 not within permitted range

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

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 DB6PM719 - DBCFG - DFT_PREFETCH_SZ: value &1 not within permitted range ?

  The SAP error message DB6PM719 DBCFG - DFT_PREFETCH_SZ: value &1 not within permitted range typically indicates that the default prefetch size configuration for the database is set to a value that is not acceptable or valid according to the database's requirements.
  Cause:
  The error arises when the configuration parameter DFT_PREFETCH_SZ (Default Prefetch Size) is set to a value that is either too low or too high. This parameter controls the amount of data that the database prefetches into memory, and it must fall within a specific range defined by the database system.
  Solution:
  To resolve this error, you need to adjust the DFT_PREFETCH_SZ parameter to a valid value. Here are the steps you can take:
  
  
  Check the Current Value: Determine the current value of the DFT_PREFETCH_SZ parameter. You can usually do this by querying the database configuration settings.
  
  
  Refer to Documentation: Consult the database documentation or the SAP notes related to your specific database version to find the valid range for the DFT_PREFETCH_SZ parameter.
  
  
  Modify the Parameter:
  
  If you have access to the database configuration tools or SQL command line, you can change the value of DFT_PREFETCH_SZ to a valid value within the permitted range.
  For example, if the valid range is between 16 KB and 1 MB, you might set it to 128 KB or 256 KB, depending on your system's requirements.
  
  
  
  Restart the Database: After making changes to the configuration, you may need to restart the database for the changes to take effect.
  
  
  Monitor Performance: After adjusting the parameter, monitor the database performance to ensure that the new setting is optimal for your workload.
  
  
  Related Information:
  
  Database Documentation: Always refer to the official documentation for your specific database (e.g., Oracle, SQL Server, DB2, etc.) for detailed information on configuration parameters.
  SAP Notes: Check SAP Notes for any specific recommendations or known issues related to this error message.
  Performance Tuning: Adjusting prefetch settings can impact performance, so consider testing different values to find the best configuration for your environment.
  
  If you continue to experience issues after making these changes, consider reaching out to your database administrator or SAP support for further assistance.