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ICT系統集成

數據中心解決方案

1.     數據中心概述

       當今社會的競爭是信息化的競爭,企業信息化程度越高,競爭力就越大。隨著網絡技術、通信技術的發展,數據中心已經成為企業信息化的核心,數據中心的建設好壞直接影響企業的效率和發展。

      數據中心是為企業的關鍵業務系統提供承載的最重要的IT 基礎設施。是企業核心數據管理中心。企業的數據中心需要集中處理因企業業務需求而產生的接入控制、安全過濾、服務應用、信息計算、存儲備份等環節。

      數據中心主要組件包括: 土建(房間場地)、供電系統、網絡設備(數據網、計算網、存儲網)、服務器(包含相關操作系統和應用軟件)、存儲器、安全系統以及相應的運維系統等。在此方案中我們主要介紹數據網絡的內容。對于企業來講,隨著“數據大集中”的進展,越來越多的業務和數據都集中到若干個數據中心。 數據中心承載網絡的高性能和高可靠性成為企業業務開展的核心問題。


2.     數據中心的特點

        企業數據中心從物理上看是聚集了大量服務器的一個地方,它不但是企業網絡的邏輯中心,更是企業提供業務的源頭。企業數據中心應具備十分豐富的帶寬資源、安全可靠的機房設施、高水平的網絡管理、十分完備的增值服務。數據中心的實質是創造盡可能多的基于帶寬的增值價值。因此,下面幾點需求對數據中心特別重要:

        可靠性

        高可靠性是數據中心運營成功的關鍵,企業對外提供的業務如電子商務、視訊類業務,如果因為數據中心網絡故障而導致用戶體驗差,這勢必影響企業業務的擴展,嚴重的甚至導致企業盈利空間的下降。

        可靠性設計包括:鏈路冗余、關鍵設備冗余和重要業務模塊冗余。

        可擴展性

        數據中心方案設計中,每個層次的設計所采用的設備本身都應具有極高的端口密度,為數據中心的擴展奠定基礎。

        在Internet 互聯層、Intranet 互聯層、核心/匯聚層的設備都采用模塊化設計,可根據數據中心網絡的發展進行靈活擴展。

        功能的可擴展性是數據中心提供增值業務的基礎。實現負載均衡、動態內容復制、VLAN 等功能,為數據中心增值業務的擴展提供基礎。

        可管理性

        網絡的可管理性是數據中心運營管理成功的基礎。數據中心應提供多種優化的可管理信息。數據中心應具備完整的QoS 功能、完整的SLA 管理體系、多廠家網絡設備管理能力、相對獨立的后臺管理平臺,方便數據中心及其用戶的網絡管理。

        安全性

        安全性是數據中心的用戶特別是電子商務用戶最為關注的問題,也是數據中心建設中的關鍵,它包括物理空間的安全控制及網絡的安全控制。數據中心應有完整的安全策略控制體系以實現數據中心安全控制。


3.     數據中心設計

        數據中心的邏輯架構包括六大部分:

        

        核心網絡區是數據中心網絡的核心,連接內部各個服務器區域、企業的內部網絡、合作單位的網絡、災備中心和外部用戶接入的網絡等。

        服務器區域部署服務器和應用系統的區域。出于安全和擴展性的考慮,可以根據應用的類型分為:生產業務區、辦公業務區、測試業務區、DMZ 區等。

        存儲區域包括FC SAN 和IP SAN 的存儲設備和網絡。

        IP 存儲區:IP 存儲區可部署壓縮加速設備,對異地災備進行FCIP 流量的壓縮。通過IP/MPLS網絡備份同步。由于虛擬化的需求,極大的增進了服務器與存儲的交換數據。

        管理區:對存儲網絡及存儲資源進行管理、調配

        同城災備:通過 DWDM 連接同城數據中心或災備中心

        互聯網絡區域出于安全和擴展性的考慮,根據互聯的用戶類型分為:內部互聯網絡,合作單位互聯網絡,Internet 互聯網絡。

               內部互聯網絡通過園區網、廣域網和企業總部、分支機構的網絡互聯。
               合作單位互聯網絡通過城域專線、廣域專線和合作單位的網絡互聯。
               Internet 互聯網絡實現互聯網公眾用戶的接入、出差員工通過互聯網安全接入、沒有通廣域網的辦公點通過互聯網安全接入。

        災備中心互聯網絡區域是實現災備數據中心互聯的區域,主要是以傳輸設備實現與同城災備中心的互聯,以廣域網專線實現與異地災備中心的互聯。

        運維管理區:對網絡、服務器、應用系統、存儲管理的區域。包括故障管理,配置管理,性能管理,安全管理等。


祥云彩票
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