How To Fix D4419 - SAP/OS400 roll management: Next roll shared memory segment key

SAP Error Message - Details

• Message type: E = Error

• Message class: D4 - DB2/400 specific messages

• Message number: 419

• Message text: SAP/OS400 roll management: Next roll shared memory segment key

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message D4419 - SAP/OS400 roll management: Next roll shared memory segment key ?

  The SAP error message D4419, which pertains to SAP/OS400 roll management, indicates an issue with the shared memory segment key for the next roll. This error typically arises in environments where SAP is running on IBM iSeries (formerly AS/400) systems. The roll area is a part of the memory management system in SAP that handles data that cannot fit into the main memory.
  Cause:
  The error D4419 can occur due to several reasons:
  
  Memory Configuration Issues: The shared memory segment for the roll area may not be properly configured or may have reached its limit.
  System Resource Limitations: The system may be running low on available memory or other resources, preventing the allocation of the required shared memory segment.
  Incorrect Parameters: The parameters for roll management may not be set correctly in the SAP system configuration.
  Database Locking Issues: There may be locks on the database that prevent the allocation of the necessary memory segments.
  
  Solution:
  To resolve the D4419 error, you can take the following steps:
  
  
  Check Memory Configuration:
  
  Review the configuration of the roll area in the SAP system. Ensure that the parameters for the roll area are set correctly in the instance profile (e.g., rdisp/roll_area).
  Increase the size of the roll area if necessary.
  
  
  
  Monitor System Resources:
  
  Use system monitoring tools to check the available memory and other resources on the IBM iSeries system. Ensure that there is enough free memory for SAP to allocate the required segments.
  If the system is low on resources, consider optimizing the workload or upgrading the hardware.
  
  
  
  Review SAP Parameters:
  
  Check the SAP instance profile for any misconfigured parameters related to roll management. Adjust them as needed.
  You can use transaction RZ10 to modify the instance profile parameters.
  
  
  
  Restart the SAP Instance:
  
  Sometimes, simply restarting the SAP instance can resolve temporary issues with memory allocation.
  
  
  
  Check for Locks:
  
  Investigate if there are any locks on the database that could be causing the issue. Use transaction SM12 to check for and release any unnecessary locks.
  
  
  
  Consult SAP Notes:
  
  Look for relevant SAP Notes in the SAP Support Portal that may address this specific error. There may be patches or updates that can resolve the issue.
  
  
  
  Contact SAP Support:
  
  If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance.
  
  
  
  Related Information:
  
  SAP Memory Management: Understanding how SAP manages memory, including roll areas, can help in troubleshooting similar issues.
  IBM iSeries Documentation: Familiarize yourself with the specific configurations and limitations of the IBM iSeries platform as they relate to SAP.
  SAP Community: Engaging with the SAP Community forums can provide insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to diagnose and resolve the D4419 error in your SAP/OS400 environment.