How To Fix RT606 - &1 &3 > &2 &3 (15 Min.) Swap area utlization exceeds threshold

SAP Error Message - Details

• Message type: E = Error

• Message class: RT - Monitoring infrastructure MSG and alert texts

• Message number: 606

• Message text: &1 &3 > &2 &3 (15 Min.) Swap area utlization exceeds threshold

What causes this issue?

The threshold for the swap area load on this server has been exceeded.
The swap area is the portion of the storage on a disk drive that is
reserved for paging in and out of the working memory of the server.

System Response

This alert indicates that only an sufficient swap area is available on
this server. You should definitely avoid the swap area filling up
completely, as this leads to other, massive problems.

How to fix this error?

Ensure that there is alway at least 100 MB of free swap area available
on every application and database server.
For more information about this topic, see:
<LS>SAP Library -> Basis Components -> Client/Server Technology (BC-CST)
-> SAP Memory Management (BC-CST-MM ) -> Monitoring the Memory
Management System -> Swap Space Requirements</>

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RT606 - &1 &3 > &2 &3 (15 Min.) Swap area utlization exceeds threshold ?

  The SAP error message RT606 indicates that the swap area utilization has exceeded a defined threshold. This typically occurs in environments where the SAP system is running on a server with limited memory resources, and the system is forced to use swap space to manage memory allocation.
  Cause:
  
  Memory Pressure: The primary cause of this error is that the SAP system is running low on physical memory (RAM), leading to increased usage of swap space.
  High Workload: A sudden increase in workload or inefficient memory usage by certain transactions or processes can lead to excessive memory consumption.
  Configuration Issues: Incorrect configuration of the SAP system parameters related to memory management can also contribute to this issue.
  Insufficient Hardware Resources: The server may not have enough physical memory to handle the current workload.
  
  Solution:
  
  Increase Physical Memory: If possible, add more RAM to the server to reduce reliance on swap space.
  Optimize Memory Usage:
  
  Review and optimize the configuration of SAP memory parameters (e.g., abap/heap_area_total, abap/heap_area_dia, etc.).
  Analyze and optimize the ABAP programs and transactions that are consuming excessive memory.
  
  
  Monitor and Adjust Workload: Use transaction codes like ST03N (Workload Analysis) and ST06 (Operating System Monitor) to monitor system performance and identify any processes that are consuming excessive resources.
  Adjust Swap Space Configuration: If increasing physical memory is not an option, consider adjusting the swap space configuration to allow for more swap space, but this is generally a temporary solution.
  Review Background Jobs: Check for any long-running or resource-intensive background jobs that may be consuming memory and adjust their scheduling or resource allocation.
  System Restart: In some cases, a system restart may help clear memory and swap space, but this should be done with caution and proper planning.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to memory management and performance tuning for specific recommendations and best practices.
  System Monitoring Tools: Utilize SAP monitoring tools (like SAP Solution Manager) to keep track of system performance and memory usage trends.
  Documentation: Refer to SAP documentation for guidelines on memory management and configuration settings.
  
  Preventive Measures:
  
  Regularly monitor system performance and memory usage.
  Conduct periodic reviews of system configurations and workloads.
  Plan for hardware upgrades as needed based on growth and usage patterns.
  
  By addressing the underlying causes and implementing the suggested solutions, you can mitigate the occurrence of the RT606 error and improve the overall performance of your SAP system.