【摘要】：對于現(xiàn)代商業(yè)銀行來說,銀行科技信息系統(tǒng)的安全穩(wěn)定運行,逐漸受到了越來越多的關(guān)注,越來越苛刻的監(jiān)管和用戶要求。銀行科技信息系統(tǒng)主要包含主機平臺、開放平臺、網(wǎng)絡(luò)環(huán)境及機房硬件環(huán)境,每個環(huán)節(jié)的高可用性都依賴于軟硬件整體設(shè)計的冗余架構(gòu)和可靠性。當(dāng)前主機平臺以嚴(yán)格的最大限度的冗余度保證了系統(tǒng)的穩(wěn)定運行,而開放平臺系統(tǒng)高可用性的實現(xiàn)需要在網(wǎng)絡(luò)、系統(tǒng)硬件、操作系統(tǒng)、數(shù)據(jù)庫軟件、應(yīng)用軟件上的整體考慮,以保證在任意一個環(huán)節(jié)失效的情況下,都能進(jìn)行及時的恢復(fù),要求系統(tǒng)恢復(fù)時間極短,并且在系統(tǒng)恢復(fù)后保證數(shù)據(jù)的一致性。 目前,開放式系統(tǒng)的可用性解決方案中：在網(wǎng)絡(luò)層面,采用雙網(wǎng)絡(luò)、雙通訊設(shè)備的熱備份結(jié)構(gòu),以防止因線路故障、網(wǎng)卡故障等造成通信癱瘓；在系統(tǒng)硬件層面,對關(guān)鍵硬件采取冗余設(shè)計保障高可用；在操作系統(tǒng)層面,主要利用磁盤陣列實現(xiàn)多機數(shù)據(jù)共享,在操作系統(tǒng)廠商提供的高可用軟件的管理下實現(xiàn)整個系統(tǒng)的高可用；另外,一些數(shù)據(jù)庫軟件、應(yīng)用軟件也提供了集群解決方案。但是,采取高可用模式部署的系統(tǒng),實際運行中還是存在一些問題,如主備系統(tǒng)切換成功率較低、需人工干預(yù)較多、時間不可控等。 本文首先從系統(tǒng)可用性分析模型著手,總結(jié)了三種途徑來提高整個系統(tǒng)的可用性；詳細(xì)介紹了高可用相關(guān)的集群技術(shù)和虛擬化技術(shù)；通過深入研究前沿的高可用技術(shù)以及業(yè)界成熟的高可用解決方案,并聯(lián)系本人的工作中的實際,結(jié)合農(nóng)業(yè)銀行信息系統(tǒng)的實際特點以及對高可用性的具體需求,提出了一套適合于銀行開放式系統(tǒng)建設(shè)的企業(yè)級高可用架構(gòu)；并基于以上研究,選擇應(yīng)用項目進(jìn)行了高可用優(yōu)化改造實踐。 在本文研究課題的推動下,通過對前沿的高可用技術(shù)和主流的高可用產(chǎn)品的研究,深入分析了開放式系統(tǒng)的高可用解決方案,詳細(xì)梳理了開放式系統(tǒng)可能存在的風(fēng)險點,研究制定了符合農(nóng)業(yè)銀行信息化建設(shè)特點的企業(yè)級高可用架構(gòu)模式,并在農(nóng)業(yè)銀行的總行數(shù)據(jù)中心及多家分行都有廣泛的應(yīng)用,取得了較好的經(jīng)濟效益和社會效益,為同業(yè)信息系統(tǒng)高可用建設(shè)提供了有益的參考。
[Abstract]:For modern commercial banks, the safe and stable operation of bank science and technology information system has gradually received more and more attention, more and more stringent supervision and user requirements. The bank science and technology information system mainly includes the host platform, the open platform, the network environment and the computer room hardware environment. The high availability of each link depends on the redundant structure and the reliability of the whole software and hardware design. At present, the host platform ensures the stable operation of the system with strict maximum redundancy, and the realization of high availability of the open platform system needs the overall consideration on the network, system hardware, operating system, database software and application software. In order to ensure that any link failure, can be timely recovery, the system recovery time is very short, and after the system recovery to ensure the consistency of the data. At present, in the open system usability solution: in the network level, adopts the double network, the double communication equipment hot backup structure, in order to prevent because of the line fault, the network card breakdown and so on causes the communication paralysis; At the system hardware level, redundancy design is adopted to ensure the high availability of key hardware. At the operating system level, the disk array is mainly used to realize the multi-computer data sharing, and the high availability of the whole system is realized under the management of the high-availability software provided by the operating system manufacturer. In addition, some database software, application software also provides the cluster solution. However, there are still some problems in the actual operation of the system deployed in high availability mode, such as the low success rate of switching between the main and backup systems, the need for more manual intervention, the uncontrollable time, and so on. This paper begins with the system availability analysis model, summarizes three ways to improve the usability of the whole system, and introduces the cluster technology and virtualization technology related to high availability in detail. Through in-depth research on cutting-edge high-availability technologies and well-established high-availability solutions in the industry, and combining the actual characteristics of agricultural bank information systems and the specific needs for high availability, and in the light of the actual situation in my work, A set of enterprise high availability architecture suitable for the construction of open banking system is put forward. Based on the above research, the application project is selected to carry out the practice of high availability optimization and transformation. Under the impetus of the research topic in this paper, through the research of advanced high availability technology and mainstream high availability products, this paper deeply analyzes the high availability solution of open system, and combs the possible risk point of open system in detail. This paper studies and formulates the enterprise high availability architecture model which accords with the characteristics of agricultural bank information construction, and has been widely used in the data center of agricultural bank headquarters and many branches, and has achieved better economic and social benefits. It provides a useful reference for the construction of high availability information system in the same industry.
【學(xué)位授予單位】：中國科學(xué)院大學(xué)(工程管理與信息技術(shù)學(xué)院)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2013
【分類號】：F830.49;TP309

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