How To Fix RS_DB_DB6526 - An MDC block index does not exist

SAP Error Message - Details

• Message type: E = Error

• Message class: RS_DB_DB6 - DB6-Specific Messages in SAP BW

• Message number: 526

• Message text: An MDC block index does not exist

What causes this issue?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

How to fix this error?

Report an incident on component BW-SYS-DB-DB6.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RS_DB_DB6526 - An MDC block index does not exist ?

  The SAP error message RS_DB_DB6526, which states "An MDC block index does not exist," typically occurs in the context of SAP BW (Business Warehouse) or SAP HANA when there is an issue with the Multi-Dimensional Cube (MDC) data storage. This error indicates that the system is unable to find the necessary index for a specific data block, which can lead to problems in data retrieval or processing.
  Causes:
  
  Corrupted Index: The index for the MDC block may be corrupted or missing due to system crashes, improper shutdowns, or data inconsistencies.
  Data Load Issues: If there were issues during data loading processes, such as interruptions or failures, it could lead to incomplete or missing indexes.
  Database Changes: Changes in the database structure or configuration that are not properly synchronized with the data model can lead to this error.
  Version Mismatch: If there are discrepancies between the versions of the database and the SAP application, it may cause issues with index management.
  
  Solutions:
  
  
  Rebuild the Index: The most common solution is to rebuild the index for the affected MDC block. This can often be done through transaction codes or specific SAP BW tools.
  
  Use transaction RSA1 to access the Data Warehousing Workbench.
  Navigate to the InfoProvider and check for options to repair or rebuild the index.
  
  
  
  Data Consistency Check: Perform a consistency check on the data model to identify and rectify any inconsistencies.
  
  Use transaction RSCONN01 to check the consistency of the data.
  
  
  
  Data Load Restart: If the error occurred during a data load, consider restarting the data load process after ensuring that the source data is intact and the target structure is correctly defined.
  
  
  Database Administration: If the issue persists, consult with your database administrator to check for any underlying database issues or to perform maintenance tasks that may resolve the problem.
  
  
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates available that can resolve the issue.
  
  
  System Logs: Review system logs and traces to gather more information about the error context. This can help in diagnosing the root cause.
  
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for detailed information on managing MDC blocks and indexes.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found effective.
  Support Tickets: If the issue cannot be resolved internally, consider opening a support ticket with SAP for further assistance.
  
  Always ensure that you have proper backups and that you are following best practices when performing any operations that could affect your data integrity.