How To Fix SDB2U021 - SEGSIZE > 0 only with MEMBER CLUSTER = 'NO'

SAP Error Message - Details

• Message type: E = Error

• Message class: SDB2U - DB2/390: Messages for Function Group SDB2U

• Message number: 021

• Message text: SEGSIZE > 0 only with MEMBER CLUSTER = 'NO'

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SDB2U021 - SEGSIZE > 0 only with MEMBER CLUSTER = 'NO' ?

  The SAP error message SDB2U021 indicates that there is an issue with the configuration of a database table in SAP, specifically related to the segment size (SEGSIZE) and the member cluster setting. This error typically arises in the context of SAP's database management, particularly when using DB2 as the underlying database.
  Cause:
  The error message SDB2U021 occurs when:
  
  The SEGSIZE parameter is set to a value greater than 0, but the table is defined with the MEMBER CLUSTER option set to 'NO'.
  In DB2, the SEGSIZE parameter specifies the size of the segments for a table, and it is only applicable when the table is defined as a member cluster. If the table is not a member cluster, having a non-zero segment size is invalid.
  
  Solution:
  To resolve this error, you can take one of the following actions:
  
  
  Change the SEGSIZE to 0:
  
  If the table does not need to be a member cluster, you can modify the table definition to set the SEGSIZE to 0. This will eliminate the conflict since a non-member cluster table should not have a segment size.
  
  
  
  Change the MEMBER CLUSTER setting:
  
  If the table should be a member cluster, you can modify the table definition to set MEMBER CLUSTER = 'YES'. This will allow the use of a non-zero SEGSIZE.
  
  
  
  Review Table Design:
  
  Review the design and requirements of the table to determine whether it should be a member cluster or not. This decision should be based on how the data is accessed and the performance requirements.
  
  
  
  Consult Documentation:
  
  Refer to the SAP and DB2 documentation for best practices regarding table definitions, especially concerning segment sizes and clustering options.
  
  
  
  Related Information:
  
  DB2 Documentation: Check the official IBM DB2 documentation for detailed explanations of the SEGSIZE and MEMBER CLUSTER options.
  SAP Notes: Look for relevant SAP Notes that may provide additional insights or updates regarding this error message.
  Database Administration: If you are not familiar with database administration tasks, consider consulting with a DBA who has experience with SAP and DB2.
  
  By addressing the configuration of the table according to the above suggestions, you should be able to resolve the SDB2U021 error.