【正文】 we have to resolve two key issues. The first, what informatioin is provided by attributes and what storage policy should be choose? The second, How to transfer attributes from user applications to storage devices? We are trying to answer these two questions by focusing on RAID systems in this dissertation. Furthermore, we established the mechanism for transferring attributes from application to device beased on T10 SCSI OSD protocal. One approach is provide attributes by calling specific APIs, and the other is provide file system information as “hints” for prediction and further policy choice. We also defined three new attribute pages for OSD standard as extention proposal. At last, we introduced the design and implementation of a prototype system, iSCSIOSDRAID, which is patible to T10 OSD standard (version 1). It use iSCSI protocal as SCSI mand transport layer. We developed a OSD target driver over iSCSI on Linux platform based on our RAID controller project. The evaluation results verified performance and the attributes managed data placement policy. Keywords: object, storage, attribute, RAID, storage policyComment [T5]: 注意目錄的格式，系統(tǒng)自動(dòng)生成的格式和這個(gè)有差異，生成目錄后按這個(gè)格式排版，不要三級(jí)目錄，注意此目錄進(jìn)行域更新后第一行第二行縮進(jìn)有問題，請(qǐng)注意調(diào)整目 錄摘 要 .........................................................................................................IABSTRACT...................................................................................................II目 錄 .......................................................................................................III1 緒 論 ..................................................................................................3 課題背景 .............................................................................................3 國(guó)內(nèi)外發(fā)展?fàn)顩r .................................................................................3 課題要求 .............................................................................................3 研究目的和主要內(nèi)容 .........................................................................3 課題的來源 .........................................................................................32 方案論證（或具體背景技術(shù)概述） .....................................................3 系統(tǒng)需求分析 .....................................................................................3 系統(tǒng)可行性分析 .................................................................................3 開發(fā)工具分析及選擇 .........................................................................3 關(guān)鍵技術(shù)分析 .....................................................................................3 基本方案制定 .....................................................................................3 多層次存儲(chǔ)設(shè)備健康預(yù)警 .................................................................3 磁盤數(shù)據(jù)自愈技術(shù) .............................................................................3 RAID5分條技術(shù) .................................................................................3 磁盤故障預(yù)警技術(shù) .............................................................................3 本章小結(jié) ..........................................................................................33 XXX系統(tǒng)設(shè)計(jì) .......................................................................................3 功能需求 .............................................................................................3 系統(tǒng)總體設(shè)計(jì) （例 1） ......................................................................3 系統(tǒng)總體設(shè)計(jì) （例 2） ......................................................................3 功能模塊設(shè)計(jì) .....................................................................................3 設(shè)計(jì)特點(diǎn) .............................................................................................3 本章小結(jié) .............................................................................................34 XXX 系統(tǒng)實(shí)現(xiàn) .......................................................................................3 磁盤 I/O 過濾器實(shí)現(xiàn) ..........................................................................3 磁盤屬性管理模塊實(shí)現(xiàn) .....................................................................3 數(shù)據(jù)遷移模塊實(shí)現(xiàn) .............................................................................3 磁盤狀態(tài)檢測(cè)模塊實(shí)現(xiàn) .....................................................................3 運(yùn)行動(dòng)態(tài)分析 .....................................................................................3 本章小結(jié) .............................................................................................35 性能評(píng)估與分析 ...................................................................................3 測(cè)試環(huán)境 .............................................................................................3 功能測(cè)試 .............................................................................................3 系統(tǒng)界面 .............................................................................................3 性能測(cè)試 .............................................................................................3 本章小結(jié) ...........................................................................................536 全文總結(jié) ............................................................................................54致 謝 .......................................................................................................56參考文獻(xiàn) ...................................................................................................57Comment [T6]: 章節(jié)形式，注意每章必須新起一頁，具體方法是在上一章尾部增加一個(gè)分頁符Comment [T7]: 二級(jí)標(biāo)題，具體可以可以用格式刷復(fù)制1 緒 論本章我們首先介紹了當(dāng)前存儲(chǔ)系統(tǒng)面臨的挑戰(zhàn)和技術(shù)發(fā)展趨勢(shì)，然后分析了對(duì)象存儲(chǔ)技術(shù)的產(chǎn)生及發(fā)展現(xiàn)狀，介紹了國(guó)內(nèi)外在存儲(chǔ)策略和智能存儲(chǔ)領(lǐng)域的相關(guān)研究工作，并對(duì)本文的主要研究?jī)?nèi)容及工作意義作了具體說明。中文關(guān)鍵詞須用漢字，不得使用英文單詞或其縮寫，例如“DBMS”不能作為中文關(guān)鍵詞，必須用對(duì)應(yīng)的中文表述：“數(shù)據(jù)庫管理系統(tǒng)” 。中文摘要須另起一頁。用精練的語言概述本論文的主要研究?jī)?nèi)容、目的意義、設(shè)計(jì)過程、實(shí)驗(yàn)手段及取得的成果等。同時(shí)以一個(gè)正在進(jìn)行的 RAID控制器項(xiàng)目為基礎(chǔ)，增加了新的對(duì)象存儲(chǔ)管理模塊，最終實(shí)現(xiàn)了 OSD接口的磁盤陣列，并驗(yàn)證了屬性控制的數(shù)據(jù)放置策略。設(shè)計(jì)實(shí)現(xiàn)了符合 T10 OSD標(biāo)準(zhǔn)協(xié)議的原型系統(tǒng)（iSCSIOSDRAID ） 。比較而言，前者容易實(shí)現(xiàn)，而后者要求新的 OSD文件系統(tǒng)，好處是不需要修改應(yīng)用程序。一種是調(diào)用專門的應(yīng)用程序接口直接提供屬性信息，存儲(chǔ)設(shè)備根據(jù)屬性直接做出存儲(chǔ)策略選擇?；趯?duì)象的存儲(chǔ)（ObjectBased Stor