How To Fix D4408 - Monitoring object: SAP/OS400 roll management - free roll areas

SAP Error Message - Details

• Message type: E = Error

• Message class: D4 - DB2/400 specific messages

• Message number: 408

• Message text: Monitoring object: SAP/OS400 roll management - free roll areas

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message D4408 - Monitoring object: SAP/OS400 roll management - free roll areas ?

  The SAP error message D4408, which pertains to monitoring object "SAP/OS400 roll management - free roll areas," typically indicates an issue with the roll area management in an SAP system running on the IBM i (formerly AS/400) platform. This error is related to the management of memory areas used for roll and paging, which are critical for the performance and stability of the SAP system.
  Cause:
  
  Insufficient Roll Area: The error often arises when the system runs low on available roll areas. Roll areas are used to store data that cannot be held in the main memory, and if these areas are exhausted, it can lead to performance issues or system instability.
  Configuration Issues: Incorrect configuration of the roll area parameters in the SAP system can lead to inadequate allocation of memory resources.
  High Workload: A sudden increase in workload or a large number of concurrent users can consume roll areas more quickly than anticipated.
  Memory Leaks: In some cases, memory leaks in the application or system processes can lead to exhaustion of roll areas.
  
  Solution:
  
  Increase Roll Area Size: You can increase the size of the roll areas in the SAP system configuration. This can be done by adjusting the parameters in the instance profile (e.g., rdisp/roll_area).
  Monitor and Optimize Workload: Use transaction codes like ST03N or ST06 to monitor system performance and workload. Identify any processes that are consuming excessive resources and optimize them.
  Check Configuration: Review the configuration settings for roll management in the SAP system. Ensure that the parameters are set according to the recommended guidelines for your system's workload and memory capacity.
  Restart the Instance: In some cases, a simple restart of the SAP instance can free up roll areas and resolve temporary issues.
  System Upgrade: If the issue persists, consider upgrading the system or hardware to accommodate higher workloads and improve performance.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to roll area management and performance tuning for specific guidance and best practices.
  Documentation: Refer to the official SAP documentation for detailed information on memory management and roll area configuration.
  Monitoring Tools: Utilize SAP monitoring tools to keep track of memory usage and roll area availability, which can help in proactive management of the system.
  
  If the problem continues after trying these solutions, it may be beneficial to consult with SAP support or a professional with expertise in SAP on IBM i systems for further assistance.