Quantifying Independence Redundancy in Systems: Measurement, Factors, and Impact Analysis

TL;DR

This paper introduces systematic methods to quantify independent redundancy in complex systems, considering multiple factors and their interactions, to improve system reliability and fault tolerance.

Contribution

It presents novel methodologies for evaluating and calculating the Independent Redundancy Degree (IRD), incorporating time and space factors, and analyzing their impact on system resilience.

Findings

Different dimensions significantly influence redundancy effectiveness.

Addressing weak dimensions enhances system reliability.

Quantitative assessment aids in optimizing redundancy strategies.

Abstract

Redundancy represents a strategy for achieving high availability. However, various factors, known as singleness factors, necessitate corresponding redundancy measures. The absence of a systematic approach for identifying these singleness factors and the lack of a quantifiable method to assess system redundancy degrees are notable challenges. In this paper, we initially present methodologies to evaluate system redundancy, specifically quantifying independent redundancy in complex systems. This approach considers the interactions among various factors that influence redundancy, treating different factors as distinct dimensions to comprehensively account for all potential impact factors. Additionally, we propose methodologies to calculate the Independent Redundancy Degree (IRD) when combining or removing system components, offering insights into system resilience during integration or separation. Furthermore, we broaden the scope of known singleness factors by exploring time and space dimensions, aiming to identify additional related singleness factors. This process helps us pinpoint critical system aspects that necessitate redundancy for enhanced fault-tolerance and reliability. The verification results underscore the influence of different dimensions and reveal the significance of addressing weak dimensions for enhancing system reliability.