Rule Construction and Execution for Root Cause Analysis

SUMMARY We developed a root cause analysis (RCA) system for an enterprise IT system environment. In this paper, we propose a rule-construction method that builds analysis rule data objects from general analysis rules and the topology information of the actual target IT environment. Using this method, the IT administrator can use the RCA system without any manual rule modifications. For the execution of the analysis, we introduce the certainty factor to realize robust analysis when the order and reachability of a fault event cannot be guaranteed.