How To Fix RSDD_ZA160 - Test for checks that are deactivated because BWA is a single instance

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDD_ZA - Messages from TREX Aggregate Area

• Message number: 160

• Message text: Test for checks that are deactivated because BWA is a single instance

What causes this issue?

The system checks whether the connected SAP NetWeaver BW Accelerator is
a single system instance. This means that the SAP NetWeaver BW
Accelerator runs on one server rather than in a distributed landscape,
like in a blade server rack.

System Response

All alert server checks specific to distributed systems are therefore
deactivated, for example the check to identify whether a landscape
reorganization is required.

How to fix this error?

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

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 RSDD_ZA160 - Test for checks that are deactivated because BWA is a single instance ?

  The SAP error message RSDD_ZA160 typically relates to issues with the Business Warehouse Accelerator (BWA) in SAP BW (Business Warehouse). This error indicates that certain checks or functionalities are deactivated because the BWA is configured as a single instance. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Single Instance Configuration: The error arises when the BWA is set up as a single instance. In this configuration, certain checks that are normally performed in a multi-instance setup are not applicable or are disabled.
  Incompatibility with Certain Features: Some features or checks in SAP BW may require a multi-instance BWA setup to function correctly. When the system detects that it is running in a single instance mode, it disables these checks to avoid errors or inconsistencies.
  
  Solution:
  
  Review BWA Configuration: Check the configuration of your BWA. If you require the checks that are being disabled, consider reconfiguring your BWA to support a multi-instance setup. This may involve hardware changes or adjustments in your SAP landscape.
  Adjust BW Settings: If changing the BWA configuration is not feasible, you may need to adjust your BW settings or processes to work within the limitations of the single instance setup. This may involve modifying queries or reports that rely on the disabled checks.
  Consult SAP Documentation: Refer to the official SAP documentation for guidance on BWA configurations and limitations. This can provide insights into best practices and potential workarounds.
  SAP Support: If the issue persists or if you need further assistance, consider reaching out to SAP Support for help. They can provide specific guidance based on your system configuration and requirements.
  
  Related Information:
  
  BWA Overview: Understand the role of the Business Warehouse Accelerator in SAP BW, including its benefits for query performance and data processing.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide updates and patches that could resolve the issue.
  Performance Tuning: If you are facing performance issues, consider other performance tuning options within SAP BW that do not rely on BWA, such as optimizing data models or queries.
  Documentation and Community: Engage with the SAP Community or forums where other users may have encountered similar issues. Sharing experiences can lead to practical solutions.
  
  By addressing the configuration of your BWA and understanding the limitations of a single instance setup, you can work towards resolving the RSDD_ZA160 error effectively.