Cloud Redundancy Risk Index Calculation for Failure Prioritization

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Solution Overview

Problem

Current cloud computing systems lack an effective method to quantify and balance redundancy across domains, making it difficult to determine the at-risk probability of services and prioritize component failures for maintenance.

Innovation Solution

A method is introduced to calculate an at-risk probability in the compute, storage, and network domains by using logarithmic risk indexing, considering factors like blade and disk failure rates, failover rates, and replacement times, allowing for a comprehensive risk assessment and prioritization of component maintenance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If traditional fractional threshold methods are used to measure redundancy, then the measurement is simple, but the ability to quantify and compare redundancy across different domains is insufficient

Engineering Contradiction:
Improvesimplicity of redundancy measurementVSAvoidability to quantify and compare redundancy across domains
Core Design Contradiction:
Ease of operationVSMeasurement precision

Solution Approach 1:

The patent transforms redundancy measurement from simple fractional thresholds to probabilistic risk indices by changing the parameter representation. It calculates at-risk probabilities using failure rates, replacement times, and component configurations, then normalizes these into comparable risk indices across compute, storage, and network domains, enabling precise quantitative comparison while maintaining operational simplicity.

Inventive Principle:
Principle #35Parameter changes

2Speed

If redundancy is measured using simple fractional thresholds, then the measurement process is fast, but the ability to prioritize component failures for maintenance is limited

Engineering Contradiction:
Improvespeed of redundancy measurementVSAvoidability to prioritize component failures
Core Design Contradiction:
SpeedVSDifficulty of detecting and measuring

Solution Approach 1:

The patent implements a feedback mechanism that continuously monitors component health, failure rates, and redundancy status across all domains. It calculates real-time at-risk probabilities and generates prioritized failure lists based on current system state, enabling both rapid measurement and intelligent prioritization of maintenance activities based on actual risk conditions.

Inventive Principle:
Principle #23Feedback

3Measurement precision

If comprehensive risk assessment considering multiple factors is performed, then the accuracy of service risk evaluation is improved, but the complexity of the assessment process increases

Engineering Contradiction:
Improveaccuracy of service risk evaluationVSAvoidcomplexity of risk assessment process
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent segments the complex risk assessment into separate domain-level calculations (compute domain, storage domain, network domain), each with its own specific risk factors and formulas. This segmentation allows comprehensive multi-factor assessment while maintaining manageable complexity through modular, domain-specific evaluation processes that can be independently optimized.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS9372775B1Method and apparatus for providing at risk information in a cloud computing system having redundancy
Publication Date: 2016.06.21 EMC IP HLDG CO LLC
  • US9372775B1 patent drawing
  • US9372775B1 patent drawing
  • US9372775B1 patent drawing

AI summary

Methods and apparatus for generating at risk probabilities for a pre-integrated cloud computing system. In one embodiment, a system determines a revised overall risk index after at least two component failures in at least two of the compute domain, storage domain, and storage paths to assist a user in selecting a first one of the at least two component failures to fix first.