How To Fix VIRT148 - Memory Paged In per Second

SAP Error Message - Details

• Message type: E = Error

• Message class: VIRT - Virtualization Monitoring

• Message number: 148

• Message text: Memory Paged In per Second

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message VIRT148 - Memory Paged In per Second ?

  The SAP error message VIRT148, which indicates "Memory Paged In per Second," is related to memory management in the SAP system. This message typically arises when the system is experiencing high memory paging activity, which can lead to performance degradation. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  
  High Memory Usage: The SAP application may be consuming more memory than what is available, leading to excessive paging. This can occur due to:
  
  Inefficient memory allocation in the application.
  Large data processing tasks that require more memory.
  Insufficient physical memory (RAM) on the server.
  
  
  
  Configuration Issues: Incorrect configuration of the SAP system parameters or the underlying operating system can lead to inefficient memory usage.
  
  
  Operating System Limitations: The operating system may not be optimized for the workload, leading to increased paging.
  
  
  Background Processes: Background jobs or processes that consume significant memory can also contribute to this issue.
  
  
  Solutions:
  
  
  Increase Physical Memory: If the server is consistently running out of memory, consider adding more RAM to the system.
  
  
  Optimize SAP Memory Settings:
  
  Review and adjust the SAP memory parameters (e.g., abap/heap_area_total, abap/heap_area_dia, etc.) in the instance profile to better utilize available memory.
  Use transaction RZ10 to modify instance profiles and restart the instance.
  
  
  
  Analyze Workload: Use transaction ST03N to analyze the workload and identify any long-running or memory-intensive transactions. Optimize or schedule these jobs during off-peak hours.
  
  
  Check for Memory Leaks: Monitor the application for memory leaks or inefficient memory usage patterns. Use tools like the SAP Memory Inspector or transaction SMEM to analyze memory consumption.
  
  
  Review Operating System Settings: Ensure that the operating system is configured to handle the workload efficiently. This may include adjusting virtual memory settings or tuning kernel parameters.
  
  
  Limit Background Jobs: If there are many background jobs running simultaneously, consider staggering their execution to reduce memory load.
  
  
  Upgrade Hardware: If the current hardware is outdated, consider upgrading to a more powerful server that can handle the workload more efficiently.
  
  
  Related Information:
  
  Monitoring Tools: Use SAP monitoring tools like ST06 (Operating System Monitor) and ST02 (Tune Summary) to monitor memory usage and performance.
  SAP Notes: Check for relevant SAP Notes that may provide additional guidance or patches related to memory management and performance tuning.
  Documentation: Refer to SAP documentation for best practices on memory management and performance optimization.
  
  By addressing the underlying causes and implementing the suggested solutions, you can mitigate the VIRT148 error and improve the overall performance of your SAP system.