【摘要】：磁盤陣列控制器作為磁盤陣列的核心部件，它的性能高低已經(jīng)成為影響磁盤陣列系統(tǒng)整體性能的關(guān)鍵因素，與之相應(yīng)的磁盤陣列存儲(chǔ)系統(tǒng)的故障單點(diǎn)開始逐漸向控制器端轉(zhuǎn)移，通過(guò)控制器的冗余機(jī)制，保證了在控制器端出現(xiàn)單點(diǎn)故障的情況下，系統(tǒng)不會(huì)癱瘓，，仍能對(duì)外提供不間斷服務(wù)。然而，這種方式只是避免了應(yīng)用的單點(diǎn)故障，如今對(duì)于數(shù)據(jù)的安全性有著更高要求，尤其是某些部門需要提供7*24的不間斷服務(wù)，磁盤陣列系統(tǒng)不僅需要有控制端的冗余，還應(yīng)該充分保證數(shù)據(jù)存儲(chǔ)端的可靠性。 基于DRBD（Distributed Replicated Block Device）的雙控制器磁盤陣列是一套雙機(jī)雙柜的解決方案，提供基于iSCSI(Internet Small Computer System Interface)的網(wǎng)絡(luò)存儲(chǔ)服務(wù)。通過(guò)邏輯卷管理實(shí)現(xiàn)了設(shè)備級(jí)別的存儲(chǔ)虛擬化，使對(duì)磁盤設(shè)備的管理更加靈活；除了采用兩臺(tái)控制器同時(shí)提供服務(wù)保證設(shè)備的利用率與避免控制器的單點(diǎn)故障外，還利用DRBD的數(shù)據(jù)鏡像功能實(shí)現(xiàn)了存儲(chǔ)數(shù)據(jù)的冗余，實(shí)現(xiàn)了控制器端與存儲(chǔ)設(shè)備端的雙重容錯(cuò)的功能，提高了系統(tǒng)的可用性。系統(tǒng)通過(guò)將存儲(chǔ)設(shè)備劃分為普通卷與高可用卷來(lái)提供相應(yīng)級(jí)別的存儲(chǔ)服務(wù)，滿足用戶多樣性的需求。 系統(tǒng)的控制管理采用了B/S(Browser/Server)的架構(gòu)，包括前臺(tái)的Web管理界面與后臺(tái)的守護(hù)進(jìn)程，實(shí)現(xiàn)了對(duì)陣列遠(yuǎn)程可視化管理，有效的解決了雙機(jī)系統(tǒng)故障的監(jiān)控，處理與恢復(fù)，測(cè)試結(jié)果表明系統(tǒng)達(dá)到了設(shè)計(jì)的要求。
[Abstract]:As the core component of the array, the performance of the array controller has become the key factor to affect the overall performance of the array system. The corresponding single point of the disk array storage system starts to transfer to the controller side gradually. The redundancy mechanism of the controller ensures that the system will not be paralyzed and can still provide continuous service in the case of single point failure at the controller end. However, this approach only avoids a single point of failure in the application, and today there are higher requirements for data security, especially in some departments that need to provide uninterrupted service of 724, and disk array systems not only need redundancy on the control side, The reliability of the data store should also be fully guaranteed. Dual controller disk array based on DRBD (Distributed Replicated Block Device) is a dual computer and double cabinet solution, which provides network storage service based on iSCSI (Internet Small Computer System Interface). The storage virtualization of device level is realized through logical volume management, which makes the management of disk devices more flexible. In addition to using two controllers to guarantee the utilization of the equipment and avoid the single point of failure of the controller, the data mirror function of DRBD is used to realize the redundancy of the stored data. The dual fault-tolerant function of controller and storage device is realized, and the availability of the system is improved. By dividing storage devices into ordinary volumes and high availability volumes, the system provides storage services at the corresponding level to meet the diverse needs of users. The control management of the system adopts the structure of B / S (Browser/Server), including the Web management interface of the foreground and the daemon process of the background. It realizes the remote visual management of the array, and effectively solves the monitoring, processing and recovery of the dual computer system faults. The test results show that the system meets the design requirements.
【學(xué)位授予單位】：華中科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：TP333.35

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本文編號(hào)：2382034