發(fā)布時(shí)間：2018-03-08 00:03

  本文選題：光盤庫　切入點(diǎn)：通信接口　出處：《南京航空航天大學(xué)》2013年碩士論文　論文類型：學(xué)位論文

【摘要】：隨著信息技術(shù)的快速發(fā)展，帶動(dòng)了數(shù)據(jù)存儲(chǔ)的爆炸式增長，因此磁盤陣列、磁帶庫和光盤庫等大容量存儲(chǔ)設(shè)備得到了廣泛的應(yīng)用。作為二級(jí)存儲(chǔ)設(shè)備的光盤庫有著容量大、使用壽命長和安全性高等特點(diǎn)，但是其存取速度慢和搜索性能差等缺點(diǎn)已經(jīng)越來越無法滿足用戶的要求。如何提高光盤庫的存取速度已經(jīng)成為影響整個(gè)光盤庫系統(tǒng)存儲(chǔ)性能的關(guān)鍵。為此本文研究了一種虛擬光盤庫存儲(chǔ)系統(tǒng)，為有效提高光盤庫的存取能力提供一種新的思路和方法。 通過對(duì)光盤庫的存儲(chǔ)原理和功能模塊的分析，本文構(gòu)建了基于虛擬光盤庫的存儲(chǔ)體系。其主要包括：SCSI接口傳輸、MYSQL數(shù)據(jù)庫、檢索查詢、磁盤-光盤庫緩存替換算法和存儲(chǔ)資源管理。 在對(duì)Socket通信接口和SCSI傳輸接口的原理分析基礎(chǔ)上，設(shè)計(jì)了不同類型的接口，并分別實(shí)現(xiàn)了在客戶端和服務(wù)端、服務(wù)端和光盤庫之間的數(shù)據(jù)通信和傳輸。 采用了MYSQL數(shù)據(jù)庫作為檢索查詢的工具，，根據(jù)文件信息的查詢特點(diǎn)設(shè)計(jì)了檢索對(duì)象，并以此作為創(chuàng)建相關(guān)數(shù)據(jù)庫表的依據(jù)，此外本文在多種結(jié)構(gòu)數(shù)據(jù)庫表的性能分析和實(shí)驗(yàn)基礎(chǔ)上，創(chuàng)建了具有多表結(jié)構(gòu)和索引功能的數(shù)據(jù)庫表。同時(shí)MYSQL數(shù)據(jù)庫滿足了檢索查詢、任務(wù)調(diào)度和數(shù)據(jù)信息存儲(chǔ)等功能的要求。 建立了虛擬光盤庫系統(tǒng)的緩存模型，通過對(duì)傳統(tǒng)模型的研究和分析，提出了一種適合該系統(tǒng)的改進(jìn)后的緩存算法。通過與相關(guān)模型的性能對(duì)比以及對(duì)該模型參數(shù)的深入分析和測試實(shí)驗(yàn)，確定了該模型算法的最優(yōu)參數(shù)。 搭建了一個(gè)資源存儲(chǔ)的管理平臺(tái)，它集成了存儲(chǔ)管理、緩存管理、光盤庫管理和數(shù)據(jù)庫管理等模塊，實(shí)現(xiàn)了一個(gè)虛擬化的存儲(chǔ)環(huán)境。 最后通過對(duì)整個(gè)虛擬光盤庫系統(tǒng)功能和傳輸性能的實(shí)際測試，驗(yàn)證了該系統(tǒng)的可行性和有效性。
[Abstract]:With the rapid development of information technology, the explosive growth of data storage has been driven, so the disk array, magnetic tape library and optical disk library and other large-capacity storage devices have been widely used. Long service life and high safety, However, its shortcomings such as slow access speed and poor search performance have become increasingly unable to meet the requirements of users. How to improve the access speed of optical disk library has become the key to affect the storage performance of the whole optical disk library system. A virtual optical disk storage system is studied. It provides a new way of thinking and method to improve the access ability of optical disk library. Based on the analysis of storage principle and function module of optical disk library, a storage system based on virtual optical disk library is constructed in this paper. Disk-disk library cache replacement algorithm and storage resource management. Based on the analysis of the principle of Socket communication interface and SCSI transport interface, different kinds of interfaces are designed, and the data communication and transmission between client and server, server and CD library are realized respectively. The MYSQL database is used as the tool to search and query. According to the query characteristics of the file information, the retrieval object is designed and used as the basis for the establishment of the related database tables. In addition, on the basis of performance analysis and experiment of multi-structure database tables, a database table with multi-table structure and index function is created in this paper. At the same time, MYSQL database meets the requirements of retrieval query, task scheduling and data information storage. The cache model of virtual optical disk library system is established, and the traditional model is studied and analyzed. An improved buffer algorithm suitable for the system is proposed and the optimal parameters of the model algorithm are determined by comparing the performance with the related model and analyzing the parameters of the model and testing experiments. A resource storage management platform is built, which integrates storage management, cache management, optical disk library management and database management, and implements a virtual storage environment. Finally, the feasibility and effectiveness of the system are verified by testing the function and transmission performance of the whole virtual optical disk library system.
【學(xué)位授予單位】：南京航空航天大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：TP333

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