How To Fix D4405 - SAP/OS400 roll mgmt:Free user management - maximum number of big elements

SAP Error Message - Details

• Message type: E = Error

• Message class: D4 - DB2/400 specific messages

• Message number: 405

• Message text: SAP/OS400 roll mgmt:Free user management - maximum number of big elements

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message D4405 - SAP/OS400 roll mgmt:Free user management - maximum number of big elements ?

  The SAP error message D4405, which indicates "SAP/OS400 roll management: Free user management - maximum number of big elements," typically occurs in the context of SAP systems running on the IBM iSeries (formerly AS/400) platform. This error is related to the roll area management and indicates that the system has reached the maximum limit for large elements in the roll area.
  Cause:
  
  Roll Area Limit: The error is primarily caused by the roll area reaching its maximum limit for large elements. In SAP, the roll area is used to store data for user sessions, and if the number of large elements exceeds the configured limit, this error can occur.
  Memory Configuration: Insufficient memory allocation for the roll area can lead to this issue, especially if there are many concurrent users or if the applications being run require a lot of memory.
  User Sessions: A high number of active user sessions or transactions that require significant memory can contribute to this error.
  
  Solution:
  
  Increase Roll Area Size: You can increase the size of the roll area in the SAP profile parameters. This can be done by adjusting the parameters related to roll area size, such as rdisp/roll_area and rdisp/roll_max. Consult your SAP Basis administrator for the appropriate values based on your system's workload.
  Optimize User Sessions: Review the number of active user sessions and try to limit the number of concurrent users if possible. This can help reduce the load on the roll area.
  Monitor Memory Usage: Use transaction codes like ST02 (Tune Summary) to monitor memory usage and identify any bottlenecks or areas where memory can be optimized.
  Check for Long-Running Transactions: Identify and optimize any long-running transactions that may be consuming excessive memory.
  System Restart: In some cases, a system restart may help clear up memory issues temporarily, but this is not a long-term solution.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to roll area management and memory configuration for specific guidance and recommendations.
  SAP Documentation: Refer to the official SAP documentation for detailed information on memory management and roll area configuration.
  Performance Monitoring: Regularly monitor system performance and memory usage to proactively address potential issues before they lead to errors.
  
  If the problem persists after trying the above solutions, it may be necessary to consult with SAP support or your system administrator for further investigation and assistance.