Mathematical reliability models for energy-efficient parallel disk systems

本项目旨在建立容错能量感知并行磁盘系统的数学可靠性模型。可靠性模型是计算机容错系统设计的重要工具，用于估计系统的可靠性。在过去的十年中，已经建立了各种实用的磁盘系统可靠性模型。然而，这些模型大多是针对非节能磁盘系统开发的，因此很难将现有的可靠性模型应用于节能磁盘。因此，该项目的总体目标是解决节能并行磁盘系统建模可靠性的数学基础，其中容错和节能技术无缝集成，在不牺牲并行磁盘可靠性的情况下节省能源。该项目可以通过开发一个可靠性分析建模工具包以及一组新颖的数学能力模型，为并行磁盘系统的可靠性建模技术做出贡献。创新模型包括磁盘功耗模型、冗余并行磁盘系统可靠性模型、可修复节能并行磁盘系统可靠性模型、节能并行磁盘系统故障恢复模型。这项研究有三个主要优势。首先，它弥补了并行磁盘系统中可靠性分析和节能技术之间的技术差距。其次，该研究有助于实现节能并行磁盘系统的一系列数学可靠性模型。最后，该项目创建了一个可靠性分析工具包，这是第一个专门用于研究各种容错和节能技术的工具包。

This project aims at developing mathematical reliability models for fault-tolerant energy-aware parallel disk systems. Reliability models, which are used to estimate reliability, are important tools in the design of fault-tolerant computer systems. In the past decade, various practical reliability models have been constructed for disk systems. However, most of these models were developed for non-energy-efficient disk systems, thereby making it difficult to apply the existing reliability models to energy efficient disks. Therefore, the overall objective of this project is to address the mathemetical underpinnings of modeling reliability of energy-efficient parallel disk systems, where fault tolerance and energy-saving techniques are seamlessly integrated to conserve energy without sacrificing reliability in parallel disks. The project can contribute to reliability modeling techniques for parallel disk systems by developing a reliability analysis modeling toolkit accompanied with a set of novel mathematical ability models. The innovative models include disk power consumption models, a reliability model for parallel disk systems with redundancy techniques, a reliability model for repairable and energy-efficient parallel disk systems, a fault recovery model for energy-efficient parallel disk systems. This research has three main strengths. First, it bridges the technology gap between reliability analysis and energy conservation techniques in the context of parallel disk systems. Second, the research can contribute to the implementation of an array of mathematical reliability models for energy-efficient parallel disk systems. Finally, this project creates a reliability analysis toolkit, which is the first toolkit of its kind designed specifically to study a variety of fault-tolerant and energy-saving techniques.