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RELIABILITY-CENTERED MAINTENANCE STRATEGIES FOR MINIMIZING DOWNTIME AND MAXIMIZING PERFORMANCE IN HIGH-DENSITY GPU CLUSTER ENVIRONMENTS

Authors: Abiodun Victor Oyeleke, Francis Chukwudi Eze, William Asiedu

Country: USA

Abstract

High-density GPU cluster environments have emerged as the computational backbone of large-scale artificial
intelligence, foundation model training, scientific computing, and cloud-native high-performance computing.
However, increasing computational density, heterogeneous hardware architectures, intensive thermal loading, and
interdependent infrastructure components have significantly elevated the risk of cascading failures, performance
degradation, and unplanned service interruptions. Existing maintenance strategies primarily emphasize periodic
servicing or isolated predictive diagnostics, offering limited capability to capture system-wide reliability dynamics
or optimize maintenance decisions under continuously changing workloads. This study proposes a Digital TwinDriven Reliability Orchestration Framework (DT-ROF) that continuously synchronizes real-time operational
states with virtual representations of GPU nodes, storage systems, high-speed interconnects, cooling
infrastructure, and power distribution networks. The framework combines streaming telemetry, reliability state
estimation, graph-based dependency modeling, anomaly propagation analysis, and adaptive maintenance
orchestration to identify emerging reliability risks before they propagate across the cluster. Rather than scheduling
maintenance solely according to component condition, the proposed framework dynamically prioritizes
interventions by jointly considering infrastructure dependencies, workload criticality, thermal stress evolution,
redundancy availability, and operational risk. A reliability optimization engine further coordinates maintenance
activities with workload migration and resource allocation policies to maximize computational availability while
minimizing maintenance-induced performance disruption and operational cost. The proposed architecture
establishes an intelligent, self-adaptive maintenance paradigm capable of enhancing cluster resilience, extending
infrastructure lifespan, improving resource utilization, and sustaining reliable GPU performance under large-scale
AI workloads, thereby advancing reliability engineering for next-generation heterogeneous computing
infrastructures.

Keywords

Digital Twin; GPU Cluster Reliability; Maintenance Orchestration; Graph-Based Dependency Modeling; Infrastructure Resilience; High-Performance Computing

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