Optical Transceiver Failure-Time Prediction for SAN Reliability

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Solution Overview

Problem

Existing optical transceivers in storage area networks (SANs) lack effective methods for predicting failure, leading to potential catastrophic network disruptions due to unmonitored degradation or failure, which can hinder data availability and network performance.

Innovation Solution

Implementing a Long Short-Term Memory (LSTM) recurrent neural network to analyze health parameters of optical transceivers, such as transmission power, to predict the time until failure, thereby allowing proactive maintenance and preventing network disruptions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If optical transceivers are deployed in storage area networks to achieve high-speed data transmission, then network bandwidth and communication speed are improved, but the risk of catastrophic network disruptions increases due to unmonitored degradation and failure

Engineering Contradiction:
Improvedata transmission speedVSAvoidnetwork reliability
Core Design Contradiction:
SpeedVSReliability

Solution Approach 1:

The system performs preliminary actions by continuously monitoring health parameters (transmission power, temperature, voltage) and predicting failure before it occurs. The LSTM neural network analyzes historical data to forecast remaining useful life, enabling proactive maintenance that prevents catastrophic network disruptions while maintaining high-speed optical transmission

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements feedback mechanisms by continuously collecting real-time health parameter data from optical transceivers and feeding it into the prediction model. This closed-loop feedback enables dynamic adjustment and accurate prediction of transceiver degradation, allowing the network to respond to changing conditions and maintain reliability

Inventive Principle:
Principle #23Feedback

2Device complexity

If traditional monitoring methods are used for optical transceivers, then device complexity is kept low, but the ability to predict failure and perform proactive maintenance is insufficient

Engineering Contradiction:
Improvemonitoring system complexityVSAvoidfailure prediction accuracy
Core Design Contradiction:
Device complexityVSMeasurement precision

Solution Approach 1:

The system replaces traditional mechanical or rule-based monitoring approaches with an AI-driven LSTM neural network. This substitution enables sophisticated pattern recognition and predictive analytics using health parameters like transmission power, temperature, and voltage, achieving high measurement precision for failure prediction without requiring complex hardware modifications

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system monitors multiple changing parameters (transmission power in dBm, temperature in Celsius, voltage in Volts) over time and feeds them into the LSTM model. By tracking the evolution of these parameters and their relationships, the system accurately predicts failure timing while maintaining manageable system complexity through software-based analysis

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS20260074794A1Time to fail and edge impact sequence predictions for optical transceivers
Publication Date: 2026.03.12 HEWLETT PACKARD ENTERPRISE DEV LP
  • US20260074794A1 patent drawing
  • US20260074794A1 patent drawing
  • US20260074794A1 patent drawing

AI summary

Systems and methods are provided for predicting a time until failure of an optical transceiver that is used within a context of a storage area network. In order to proactively take the optical transceiver offline or otherwise replace the transceiver before its failure affects the larger network, a long short-term memory recurrent neural network is executed to predict the time that remains until a predicted failure of the transceiver. The degradation in transmission power of the transceiver is monitored until a point at which the value falls below a threshold. This then causes the neural network to be executed and an alert message to be provided to a customer, informing them of the predicted time until failure of the particular component within their larger network.