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    • 9. 发明申请
    • METHOD. SYSTEM. AND PROGRAM FOR ANDLING A FAILOVER TO A REMOTE STORAGE LOCATION
    • 方法。 系统。 和程序用于安全地远程存储位置
    • WO2005071544A1
    • 2005-08-04
    • PCT/EP2004/051117
    • 2004-06-15
    • INTERNATIONAL BUSINESS MACHINES CORPORATIONIBM UNITED KINGDOM LIMITEDKERN, Robert, FredericPETERSEN, DavidLUDVIG, Rune, Willy
    • KERN, Robert, FredericPETERSEN, DavidLUDVIG, Rune, Willy
    • G06F11/20
    • G06F11/2058G06F11/2064G06F11/2069G06F11/2071G06F11/2082
    • Provided are a method, program, and system for managing data. A mirror policy is processed indicating volumes in a first storage system to mirror to volumes in a second storage system and volumes in the second storage system to mirror to volumes in a third storage system, wherein the third storage system is at a first geographical location remote with respect to a second geo­graphical location including the first and second storage systems. A failure is detected of the first and second storage systems at the first geographical location. Automatic reconfiguration is made to network resources directing I/O requests to volumes in the first storage system to direct I/O requests to volumes in the third storage system. A failure of the first storage system and the availability of the second storage system is detected and, in response, network resources are re­configured to direct I/O requests to volumes in the first storage system to volumes in the second storage system in response to detecting the failure of the first storage system and the availability of the second storage system. Updates to the second storage system are copied to the third storage system after reconfiguring network resources to direct I/O requests to volumes in the first storage system to volumes in the second storage system.
    • 提供了一种用于管理数据的方法,程序和系统。 处理镜像策略,其指示第一存储系统中的卷映射到第二存储系统中的卷,并将第二存储系统中的卷映射到第三存储系统中的卷,其中第三存储系统处于第一地理位置的远程 涉及包括第一和第二存储系统的第二地理位置。 在第一地理位置处检测到第一和第二存储系统的故障。 自动重新配置网络资源,将I / O请求指向第一个存储系统中的卷,以将I / O请求指向第三个存储系统中的卷。 检测到第一存储系统的故障和第二存储系统的可用性,并且作为响应,重新配置网络资源以响应于检测到将I / O请求定向到第一存储系统中的卷到第二存储系统中的卷 第一个存储系统的故障和第二个存储系统的可用性。 在重新配置网络资源之后,将第二个存储系统的更新复制到第三个存储系统,以将I / O请求定向到第一个存储系统中的卷到第二个存储系统中的卷。