How To Fix RT173 - &1 &3 > &2 &3 Utilized area of fixed device cache exceeds threshold val.

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 173

• Message text: &1 &3 > &2 &3 Utilized area of fixed device cache exceeds threshold val.

What causes this issue?

The cache must have at least as many entries as the maximum number of
devices that can be used concurrently.

System Response

If this cache overflows, it is no longer possible to explicitly query
the spool host for requests for further devices. As the system
automatically records requests as complete after they have been
succesfully transferred to to the host spool system, this does not lead
to a malfunction.

How to fix this error?

You can set the size of the definable device cache using the profile
parameter <ZH>rspo/global_shm/printer_list</>. The standard and minimum
value is 150.
INCLUDE BC_SPOOL_MOREINFO OBJECT DOKU ID TX LANGUAGE EN

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RT173 - &1 &3 > &2 &3 Utilized area of fixed device cache exceeds threshold val. ?

  The SAP error message RT173 indicates that the utilized area of the fixed device cache has exceeded a specified threshold value. This can lead to performance issues or even system instability if not addressed. Here’s a breakdown of the cause, potential solutions, and related information for this error:
  Cause:
  
  Cache Utilization: The fixed device cache is used to store frequently accessed data to improve performance. If the cache is filled beyond its threshold, it can indicate that the system is under heavy load or that there are inefficiencies in data access patterns.
  Configuration Settings: The threshold values for the cache may be set too low for the current workload, leading to frequent exceedances.
  Data Volume: An increase in the volume of data being processed or accessed can lead to higher cache utilization.
  Inefficient Queries: Poorly optimized queries or reports that access large amounts of data can also contribute to high cache usage.
  
  Solution:
  
  
  Increase Cache Size: If the cache size is too small for your workload, consider increasing the size of the fixed device cache. This can be done through the SAP system configuration.
  
  Navigate to the relevant configuration settings in the SAP system (e.g., using transaction codes like RZ10 for profile parameters).
  Adjust the parameters related to the fixed device cache size.
  
  
  
  Monitor Cache Usage: Use monitoring tools to analyze cache usage patterns. This can help identify specific transactions or processes that are causing high cache utilization.
  
  Use transaction codes like ST02 (Tune Summary) to monitor buffer and cache usage.
  
  
  
  Optimize Queries: Review and optimize any queries or reports that are causing excessive cache usage. This may involve:
  
  Adding appropriate indexes.
  Reducing the amount of data being retrieved.
  Using more efficient SQL statements.
  
  
  
  Adjust Threshold Values: If the current threshold values are too low for your operational needs, consider adjusting them to more appropriate levels based on your system's performance and usage patterns.
  
  
  Regular Maintenance: Implement regular maintenance tasks to clear out old or unnecessary data from the cache, which can help manage cache utilization.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional guidance or patches related to this error message.
  Performance Tuning: Consider engaging in broader performance tuning activities within your SAP environment to ensure optimal performance and resource utilization.
  Documentation: Refer to SAP documentation for detailed information on cache management and performance tuning best practices.
  
  By addressing the underlying causes and implementing the suggested solutions, you can mitigate the impact of the RT173 error and improve the overall performance of your SAP system.