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    • 10. 发明授权
    • Storage system
    • 存储系统
    • US07243116B2
    • 2007-07-10
    • US10946034
    • 2004-09-22
    • Susumu SuzukiKenji Yamagami
    • Susumu SuzukiKenji Yamagami
    • G06F12/00G06F17/30G06F3/06G06F13/00
    • G06F11/2058G06F3/0605G06F3/0622G06F3/065G06F3/0659G06F3/067G06F3/0689G06F11/1466G06F11/2064G06F11/2087Y10S707/99953Y10S707/99955
    • In creating replicas to data of a storage volume in a storage system, a technique in which labor for issuing instructions from a processor can be reduced and then data consistency of related volumes can be secured is provided. A single replication instruction including designated information is issued for data of a logical unit serving as a copy source and a copy destination from a replication-control program of the processor. A control unit of the storage system possesses a multiple-replica creation program which enables a processing for creating replicas while securing the data consistency when an access such as a update or reference occurs for a group including a plurality of pairs of copy-source volume and copy-destination volume based on reception of the instruction. A save volume is provided to identify and control data save and update state by copy-source save information and copy-destination update information at the shared memory.
    • 在创建存储系统中的存储卷的数据的副本时,提供了可以减少用于从处理器发出指令的劳动,并且然后可以确保相关卷的数据一致性的技术。 从处理器的复制控制程序发出包含指定信息的单个复制指令,用于作为复制源和复制目的地的逻辑单元的数据。 存储系统的控制单元具有多重副本创建程序,其能够在为包括多对复制源卷的组发生诸如更新或引用的访问时在保证数据一致性的同时进行创建副本的处理,并且 基于接收指令的复制目的地卷。 提供保存卷以通过复制源保存信息和复制目的地更新信息在共享存储器上识别和控制数据保存和更新状态。