WO2010037247A1 - 异地同构实时系统的集中备用系统和备用方法 - Google Patents

异地同构实时系统的集中备用系统和备用方法 Download PDF

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Publication number
WO2010037247A1
WO2010037247A1 PCT/CN2009/000894 CN2009000894W WO2010037247A1 WO 2010037247 A1 WO2010037247 A1 WO 2010037247A1 CN 2009000894 W CN2009000894 W CN 2009000894W WO 2010037247 A1 WO2010037247 A1 WO 2010037247A1
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server
remote
network
site
data
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French (fr)
Inventor
宋汉石
陈煜�
冀乃庚
张鸣皋
王晓义
苗浩
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China Unionpay Co Ltd
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China Unionpay Co Ltd
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Priority to US13/121,117 priority Critical patent/US9083618B2/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08Configuration management of networks or network elements
    • H04L41/085Retrieval of network configuration; Tracking network configuration history
    • H04L41/0853Retrieval of network configuration; Tracking network configuration history by actively collecting configuration information or by backing up configuration information
    • H04L41/0856Retrieval of network configuration; Tracking network configuration history by actively collecting configuration information or by backing up configuration information by backing up or archiving configuration information
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00Error detection; Error correction; Monitoring
    • G06F11/07Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16Error detection or correction of the data by redundancy in hardware
    • G06F11/20Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
    • G06F11/202Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where processing functionality is redundant
    • G06F11/2023Failover techniques
    • G06F11/2025Failover techniques using centralised failover control functionality

Definitions

  • the present invention relates to banking systems, and more particularly to systems for centralized backup of off-site homogeneous real-time systems in a banking system. Background technique
  • Real-time systems are commonly used in the banking industry. Due to the particularity of the banking industry, the backup of real-time systems is indispensable. At present, the low-cost standby side of the real-time system recognizes that data replication between the primary and backup systems is mostly limited to the same room.
  • each system is placed in different locations, real-time processing systems with the same structure, they have their own backup systems, and there is no connection between the backup systems.
  • a primary system fails, the original primary system can be processed to replace the transaction by starting the backup system.
  • the original primary system needs to be completely separated from the original network.
  • the standby system completely inherits the parameters of the primary system and then accesses the network, thus having no effect on systems outside the system.
  • the present invention provides a centralized backup system for a heterogeneous real-time system, characterized in that: a switch includes a host and a firewall connected to the switch, and the host includes a server, a fiber switch, and a disk array, wherein The server controls the copying of the off-site system data and ensures that the copied data is synchronized with the parent data in the remote system, and replaces the application function of the remote system when the remote system fails; the disk array stores the copied data.
  • the present invention also provides a centralized backup method for an off-site homogeneous real-time system, which is characterized in that it includes a handover step when a remote system fails and a recovery step when the fault is eliminated, wherein the handover step includes: disconnecting the off-site system network; Application and network; and starting a centralized backup system; recovery steps include: a system of the remote system; switching the recovery application and the network; and starting the remote system, wherein the centralized backup system includes a switch and a host and a firewall connected to the switch, the host includes a server, a fiber switch, and a disk array, where The functions of the server include: controlling copying of off-site system data and ensuring that the copied data is synchronized with the parent data in the remote system, and replacing the application function of the remote system when the remote system fails; the disk array storing the The copied data; the firewall implements network switching when the remote system switches to the standby system, wherein the server includes a plurality of logical servers, each logical server has a respective
  • the present invention also provides an off-site homogeneous real-time system, comprising: a centralized backup system, a plurality of remote systems, and a network, wherein the centralized backup system comprises a switch and a host and a firewall connected to the switch,
  • the host includes a server, a fiber switch, and a disk array, wherein the synchronization, and an application function of the remote system is replaced when the remote system fails; the disk array stores the copied data;
  • a firewall is connected to the network; the plurality of remote systems are connected to the network.
  • the invention ensures the reliability of the remote system by centralized deployment and centralized management of the backup system in all regions, and can also flexibly allocate resources to adapt to the mission requirements of the remote system in different regions.
  • Figure 1 shows the structure between existing primary and backup systems.
  • FIG. 2 shows the structure between the primary and secondary systems in accordance with the present invention.
  • FIG. 3 shows a specific architecture of a backup system in accordance with the present invention.
  • Figure 4 shows the structure of the host in Figure 3.
  • Figure 5 shows the workflow of a backup system in accordance with the present invention. detailed description
  • the off-site A ⁇ F system is a real-time processing system of the same architecture placed in several different locations, which share a "concentrated backup system". Backup system It is connected to various remote systems in a wide area network for data replication.
  • the isomorphism here is exactly the same for the architecture of the remote system, including the operating system, database and application software.
  • FIG. 3 A "centralized backup system" is shown in FIG. 3, which includes a host 301, a switch 302, an encryptor 303, a PC monitor 304, and a firewall 305. These devices are in the same LAN environment and are connected to each other by physical lines.
  • the core device for the application is a host that is used to replace the off-site system.
  • the core device of the network is a firewall, which is mainly used for network switching when the remote system switches to the host backup system.
  • the switch is a network basic device used for network data exchange.
  • the PC monitor can be used to monitor the status of each host in the backup system; the encryption machine is a commonly used device in financial transactions.
  • the remote system administrator disconnects the system from the network, and then the backup system administrator initiates the switch. After the backup system is switched and the startup is completed, for other systems in the "network", the "off-site system” that has failed can work normally, thus achieving the purpose of replacing the standby system with the remote system.
  • the network and application are restored from the standby system to the off-site system to the original state.
  • the application and network switching are two key.
  • Figure 4 shows the host in Figure 3 in detail.
  • the host system consists of servers, fabric switches, and disk arrays.
  • the server uses dynamic logical partitioning technology and is divided into three logical servers. Each logical server has its own database on the disk array, which are:
  • a data replication server that manages data replication of offsite systems and keeps the replicated data in sync with the respective parent data
  • Application Server 2 as the standby system 2.
  • the data replication of the failed remote system is imported to the application 1 server on the data replication server, and then the application 1 is started.
  • the IP address of the application 1 server is mapped outward (ie, to the "network") to the IP address of the failed off-site system, thereby completing the replacement on the network.
  • multiple application servers can be included in the server, so that simultaneous switching of multiple remote systems can be realized.
  • the implementation of this solution demonstrates that the effects of the present invention meet expectations and achieve the performance required by the design.
  • the data replication between the remote and standby systems is optimized to have little impact on the reliability of the off-site system.
  • the switched standby system can reach the transaction processing peak of the off-site system.
  • the backup system can flexibly allocate resources through the dynamic division of resources, and is suitable for off-site systems in different regions with large differences.

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Hardware Redundancy (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
  • Computer And Data Communications (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Description

异地同构实时系统的集中备用系统和备用方法 技术领域
本发明涉及银行系统, 尤其涉及银行系统中集中备份异地同构实时系统的系 统。 背景技术
银行业中普遍采用实时系统, 由于确银行业的特殊性, 对实时系统的备用是必不 可少的。 目前, 实时系统的低成本备用方认案, 考虑到主、 备系统之间的数据复制, 大多局限于同机房。
目前的常见方案是各个系统安置在不同地点, 具有相同结构的实时处理系统, 它们有各自的备用系统, 备用系统之间无任何联系。 当某个主系统发生故障后, 可以通过启动备用系统来替代原有的主系统处理交易。 考虑到系统的架构, 原主 系统需要完全脱离原来的网络, 备用系统则完全继承主系统的参数后接入网络, 这样对本系统以外的系统没有影响。
但是建设这样的系统前期投入成本高, 后期维护量大, 降低了备用系统的投入 产出比。 而且由于各地人员的专业素质参差不齐, 在主备切换中, 极其容易造成 事故。 因此, 需要建立一套集中部署和集中管理且能够支持所有地区的备用系统。 发明内容
本发明要解决的技术问题是提供成本低, 利用率高的实时系统的备用方案。 为此, 本发明提出了一种异地同构实时系统的集中备用系统, 其特征在于 > 包 括交换机和与所述交换机相连的主机和防火墙, 述主机包括服务器、 光纤交换机 以及磁盘阵列, 其中, 所述服务器控制对异地系统数据的复制并且保证复制的数 据与异地系统中的母本数据同步, 并且在异地系统发生故障时替代异地系统的应 用功能; 所述磁盘阵列存储所述复制的数据。
本发明还提供了一种异地同构实时系统的集中备用方法, 其特征在于, 包括异 地系统发生故障时的切换步骤和故障消除时的恢复步骤, 其中切换步骤包括: 断 开异地系统网络; 切换应用和网络; 以及启动集中备用系统; 恢复步骤包括: 恢 复异地系统网络; 切换恢复应用和网络; 以及启动异地系统, 其中, 所述集中备 用系统包括交换机和与所述交换机相连的主机和防火墙, 所述主机包括服务器、 光纤交换机以及磁盘阵列, 其中, 所述服务器的功能包括: 控制对异地系统数据 的复制并且保证复制的数据与异地系统中的母本数据同步, 以及在异地系统发生 故障时替代异地系统的应用功能; 所述磁盘阵列存储所述复制的数据; 所述防火 墙实现异地系统切换至备用系统时的网络切换, 其中所述服务器包括多个逻辑服 务器, 每个逻辑服务器在所述磁盘阵列上拥有各自的数据库, 所述逻辑服务器包 括数据复制服务器和应用服务器。
本发明还提供了一种异地同构实时系统, 其特征在于, 包括集中备用系统, 多 个异地系统, 以及网络, 其中所述集中备用系统包括交换机和与所述交换机相连 的主机和防火墙, 所述主机包括服务器、 光纤交换机以及磁盘阵列, 其中, 所述 同步, 并且在异地系统发生故障时替代异地系统的应用功能; 所述磁盘阵列存储 所述复制的数据; 所述集中备用系统通过所述防火墙与所述网络相连; 所述多个 异地系统与网络相连。
本发明通过对所有地区的备用系统的集中部署和集中管理,保证了异地系统的 可靠性, 还可以灵活分配资源, 适应了差异较大的各个地区的异地系统的任务需 要。 附图说明
下面结合附图和实施方式对本发明作进一步详细的说明。
图 1示出了现有的主、 备系统之间的结构。
图 2示出了根据本发明的主、 备系统之间的结构。
图 3示出了根据本发明的备用系统的具体构架。
图 4示出了图 3中主机的结构。
图 5示出了根据本发明的备用系统的工作流程。 具体实施方式
在图 2所示的主、 备系统之间的结构图中, 异地 A ~ F系统是安置在若干个不 同地点的相同架构的实时处理系统, 它们共用一个 "集中备用系统" 。 备用系统 和各个异地系统以广域网相连, 用于数据复制。 这里的同构针对异地系统的架构 完全一样的情况, 其中包括操作系统、 数据库和应用软件。
当 A ~ F系统中某个系统出现故障后,管理人员只需要断开系统与网络的连接, 然后完全由备用系统管理人员启动备用系统, 接管故障系统处理交易。
图 3中示出了 "集中备用系统" , 其中包括主机 301、 交换机 302、加密机 303 , PC监控机 304和防火墙 305。 这些设备处于同一个局域网环境中, 以实体线相互 连接。 其中有关应用的核心设备是一台主机, 用于替代异地系统。 有关网络的核 心设备是防火墙, 主要用于异地系统切换至主机备用系统时的网络切换。 交换机 是网络基本设备, 用于网络数据交换。 PC监控机可以用于监控备份系统的各个主 机情况; 加密机是金融交易中常用的设备。
当异地系统工作正常时, 异地系统和 "网络" 中的其它系统发生数据交换, 同 时也和备用系统进行数据复制。 通过图 3 中的虛线表示 "集中备用系统" 与实时 系统中其它系统处于可以连接的状态。
在异地系统故障状态时, 异地系统管理人员断开系统与网络的连接, 然后由备 用系统管理人员启动切换。 备用系统切换、 启动完成后, 对于 "网络" 中的其它 系统来说, 出现故障的 "异地系统" 又可以正常工作了, 从而达到了备用系统替 代异地系统的目的。
在异地系统排除故障后,从备用系统恢复网络和应用至异地系统, 达到原先的 状态。
从异地系统工作正常到发生故障, "集中备用系统"要经历一个切换过程, 其 中, 应用和网络的切换是两个关键, 首先参考图 4 , 其中详细示出了图 3 中的主 机, 可以看到主机系统由服务器、 光纤交换机以及磁盘阵列组成。 服务器使用动 态逻辑分区技术, 划分成 3个逻辑服务器, 每个逻辑服务器在磁盘阵列上拥有各 自的数据库, 分别是:
数据复制服务器, 管理异地系统的数据复制, 并且使复制的数据和各自的母本 数据保持同步;
应用服务器 1 , 作为备用系统 1 ;
应用服务器 2 , 作为备用系统 2。
进行应用切换时,在数据复制服务器上向应用 1服务器导入发生故障的异地系 统的数据复制, 然后启动应用 1。 进行网络切换时, 在图 3中的防火墙上, 把应用 1服务器的 I P地址向外 (即 向 "网络" ) 映射成发生故障的异地系统的 I P地址, 从而在网络上完成替代。
在设计中可以使服务器中包括有多个应用服务器,这样就可以实现多个异地系 统的同时切换。
整个切换和恢复的流程如图 5所示。在根据图 5的流程进行操作的情况下, 切 换的操作都集中在备用系统管理员, 而异地管理员的操作简单, 可以减少培训和 管理的投入。
对本方案的实施证明了本发明的效果符合预期,达到设计所要求的性能。首先, 异地、 备用系统之间的数据复制经过优化后对异地系统的可靠性几乎没有影响. 其次, 切换后的备用系统能够达到异地系统的交易处理峰值。 最后, 备用系统通 过资源的动态划分功能, 可以灵活分配资源, 适合差异较大的各个地区的异地系 统。

Claims

权 利 要 求 书
1、 一种异地同构实时系统的集中备用系统, 其特征在于, 包括交换机和与所 述交换机相连的主机和防火墙, 所述主机包括服务器、 光纤交换机以及磁盘阵列, 其中,
所述服务器用于控制对异地系统数据的复制并且保证复制的数据与异地系统 中的母本数据同步, 以及在异地系统发生故障时替代异地系统;
所述磁盘阵列存储所述复制的数据;
所述防火墙实现异地系统切换至备用系统时的网络切换。
2、 如权利要求】所述的异地同构实时系统的集中备用系统, 其中, 所迷服务 器包括多个逻辑服务器, 每个逻辑服务器在所述磁盘阵列上拥有各自的数据库。
3、 如权利要求 2所述的异地同构实时系统的集中备用系统, 其中, 所述逻辑 服务器包括数据复制服务器和应用服务器。
4、 如权利要求 1所述的异地同构实时系统的集中备用系统还包括加密机。
5、 如权利要求 1所述的异地同构实时系统的集中备用系统还包括 PC监控机。
6、 一种异地同构实时系统的集中备用方法, 其特征在于, 包括异地系统发生 故障时的切换步骤和故障消除时的恢复步骤, 其中
切换步骤包括: 断开异地系统网络;切换应用和网络; 以及启动集中备用系统; 恢复步骤包括:恢复异地系统网络; 切换恢复应用和网络; 以及启动异地系统, 其中,
所迷集中备用系统包括交换机和与所述交换机相连的主机和防火墙,所迷主机 包括服务器、 光纤交换机以及磁盘阵列 > 其中, 所述服务器用于控制对异地系统 数据的复制并且保证复制的数据与异地系统中的母本数据同步, 以及在异地系统 发生故障时替代异地系统; 所述磁盘阵列存储所述复制的数据; 所述防火墙实现 异地系统切换至备用系统时的网络切换, 其中所述服务器包括多个逻辑服务器, 每个逻辑服务器在所述磁盘阵列上拥有各自的数据库, 所述逻辑服务器包括数据 复制服务器和应用服务器。
7、 如权利要求 6所述的异地同构实时系统的集中备用方法, 其中, 切换应用 和网络的步骤包括:
从所述数据复制服务器上向所述应用服务器导入发生故障的异地系统的数据 复制; 启动所述应用服务器; 以及在所述防火墙上, 把所述应用服务器的 I P地址 向网络映射成所述异地系统的 I P地址。
8、 一种异地同构实时系统, 其特征在于, 包括集中备用系统, 多个异地系统, 以及网络, 其中
所述集中备用系统包括交换机和与所述交换机相连的主机和防火墙,所述主机 包括服务器、 光纤交换机以及磁盘阵列, 其中, 所述服务器控制对异地系统数据 的复制并且保证复制的数据与异地系统中的母本数据同步, 并且在异地系统发生 故障时替代异地系统; 所述磁盘阵列存储所述复制的数据; 所述防火墙用于异地 系统切换至备用系统时的网络切换。
所述集中备用系统通过所述防火墙与所迷网络相连;
所述多个异地系统与网络相连。
9、 如权利要求 8所述的异地同构实时系统, 其中, 所述服务器包括多个逻辑 服务器, 每个逻辑服务器在所述磁盘阵列上拥有各自的数据库。
10、 如权利要求 9所述的异地同构实时系统, 其中, 所述逻辑服务器包括数据 复制服务器和应用服务器。
PCT/CN2009/000894 2008-09-26 2009-08-07 异地同构实时系统的集中备用系统和备用方法 Ceased WO2010037247A1 (zh)

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