本文選題：分布式文件系統(tǒng) + 并行網(wǎng)絡(luò)文件系統(tǒng)��； 參考：《國防科學(xué)技術(shù)大學(xué)》2012年碩士論文

【摘要】：隨著經(jīng)濟(jì)社會的發(fā)展，傳統(tǒng)高性能存儲系統(tǒng)如存儲局域網(wǎng)（SAN）和網(wǎng)絡(luò)附加存儲（NAS）在性能和擴(kuò)展性上難以滿足海量數(shù)據(jù)的處理要求�；趯ο蟠鎯υO(shè)備（OSD）的并行網(wǎng)絡(luò)文件系統(tǒng)（pNFS）通過元數(shù)據(jù)和數(shù)據(jù)的分離，有效彌補(bǔ)了網(wǎng)絡(luò)文件系統(tǒng)（NFS）性能和擴(kuò)展性上的不足。 用戶對存儲系統(tǒng)的需求也從單純的高性能發(fā)展到綜合考慮存儲系統(tǒng)的性能價格比，對擴(kuò)展性和可靠性的需求也與日俱增。另一方面，隨著業(yè)務(wù)發(fā)展，，用戶的存儲系統(tǒng)往往同時存在不同性能級別的存儲設(shè)備，新型的高速存儲設(shè)備應(yīng)該用于盡可能地提高系統(tǒng)整體性能。分級存儲技術(shù)正是這些問題的一種有效解決方式。 基于此現(xiàn)狀，本文在深入分析當(dāng)前主流網(wǎng)絡(luò)存儲技術(shù)和現(xiàn)有典型分布式存儲系統(tǒng)的基礎(chǔ)上，采用pNFS協(xié)議，提出了一種融合分級存儲技術(shù)和對象存儲技術(shù)的分布式文件系統(tǒng)模型t-pNFS。該模型充分利用對象存儲設(shè)備的靈活性，具有高性能、高可靠、可橫向擴(kuò)展等特點，適用于對讀性能和吞吐率要求較高的領(lǐng)域。該模型提出了多種性能提升手段，主要包括：適用于緩存式分級的熱點數(shù)據(jù)識別算法和緩存策略，緩存回收策略等。 文章的最后，通過對比測試，驗證了t-pNFS模型的有效性。
[Abstract]:With the development of economy and society, traditional high performance storage systems such as storage LAN (San) and network attached storage (NASS) can not meet the requirements of mass data processing in terms of performance and scalability. Parallel network file system (pNFS) based on object storage device (OSD) can effectively compensate for the performance and expansibility of network file system (NFS) by separating metadata from data. Users' demand for storage system has also developed from pure high performance to comprehensive consideration of the performance / price ratio of storage system, and the demand for scalability and reliability is also increasing day by day. On the other hand, with the development of business, user storage systems often have different performance levels of storage devices at the same time, new high-speed storage devices should be used to improve the overall performance of the system as much as possible. Hierarchical storage technology is an effective solution to these problems. Based on this situation, this paper presents a distributed file system model t-pNFS, which combines hierarchical storage technology with object storage technology, based on in-depth analysis of current mainstream network storage technology and existing typical distributed storage systems, using pNFS protocol. The model makes full use of the flexibility of object storage devices, and has the characteristics of high performance, high reliability and lateral expansion. It is suitable for areas with high read performance and throughput. This model proposes a variety of performance enhancement methods, including: the hot data recognition algorithm and cache strategy for cache classification, cache recovery strategy and so on. At the end of the paper, the validity of t-pNFS model is verified by contrast test.
【學(xué)位授予單位】：國防科學(xué)技術(shù)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2012
【分類號】：TP333

【參考文獻(xiàn)】

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2 黃華;張建剛;許魯;;藍(lán)鯨分布式文件系統(tǒng)的客戶端元數(shù)據(jù)緩存模型[J];計算機(jī)科學(xué);2005年09期

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本文編號：1782850