How To Fix RT172 - Utilized area of fixed device cache (percentage)

RT172 - Overview

• Message type: E = Error

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

• Message number: 172

• Message text: Utilized area of fixed device cache (percentage)

This area describes for which output devices there are requests in the
host spool system that have not yet been reported as completed. The
cache must therefore contain at least as many entries as the maximum
number of devices that can be used concurrently.
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 RT172 - Utilized area of fixed device cache (percentage) ?

  The SAP error message RT172 indicates that the utilized area of the fixed device cache has reached a certain percentage threshold. This typically relates to performance issues in the SAP system, particularly in the context of database operations and memory management.
  
  Cause:
  
  High Cache Utilization: The fixed device cache is used to store frequently accessed data. If the cache is nearly full, it can lead to performance degradation as the system struggles to manage data retrieval and storage.
  Increased Workload: A sudden increase in transactions or data processing can lead to higher cache usage.
  Inefficient Queries: Poorly optimized queries can lead to excessive data being loaded into the cache.
  
  Configuration Issues: Incorrect configuration settings for the cache size or related parameters can lead to inefficient cache usage.
  
  
  Solution:
  
  Monitor Cache Usage: Use transaction codes like ST02 (Tune Summary) to monitor the cache usage and identify the current utilization percentage.
  Increase Cache Size: If the cache is consistently full,