How To Fix MD260 - Error in server group. The system will switch to sequential reading

SAP Error Message - Details

• Message type: E = Error

• Message class: MD - Material Requirements Planning (MRP)

• Message number: 260

• Message text: Error in server group. The system will switch to sequential reading

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 MD260 - Error in server group. The system will switch to sequential reading ?

  The SAP error message MD260, which states "Error in server group. The system will switch to sequential reading," typically occurs in the context of SAP's Material Requirements Planning (MRP) or similar processes that involve data retrieval from a server group. This error indicates that there is an issue with the server group configuration or the availability of the servers in that group, leading the system to revert to a less efficient method of data retrieval (sequential reading).
  Causes:
  
  Server Group Configuration Issues: The server group may not be configured correctly, or there may be issues with the servers that are part of the group.
  Network Issues: There could be network connectivity problems affecting the communication between the application server and the database server.
  Server Availability: One or more servers in the group may be down or not responding, leading to the inability to access the required data.
  Load Balancing Problems: If the load balancing mechanism is not functioning properly, it may lead to an uneven distribution of requests, causing some servers to become overloaded while others are underutilized.
  Database Locking: There may be locks on the database that prevent the system from accessing the required data efficiently.
  
  Solutions:
  
  Check Server Group Configuration: Verify the configuration of the server group in the SAP system. Ensure that all servers are correctly defined and operational.
  Monitor Server Status: Use transaction codes like SM51 to check the status of application servers and ensure they are up and running.
  Network Diagnostics: Perform network diagnostics to ensure that there are no connectivity issues between the application server and the database server.
  Review Load Balancing Settings: Check the load balancing settings to ensure that requests are being distributed evenly across the servers in the group.
  Database Monitoring: Use database monitoring tools to check for locks or performance issues that may be affecting data retrieval.
  Consult SAP Notes: Look for relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SM51 (to view active servers), SM66 (to view global work processes), and ST22 (to check for dumps) for troubleshooting.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance, especially if it is affecting critical business processes.
  Documentation: Review SAP documentation related to MRP and server group configurations for best practices and troubleshooting tips.
  
  By following these steps, you should be able to identify and resolve the underlying cause of the MD260 error in your SAP system.