Storage system with symmetrical mirroring
    8.
    发明授权
    Storage system with symmetrical mirroring 有权
    具有对称镜像的存储系统

    公开(公告)号:US07085902B2

    公开(公告)日:2006-08-01

    申请号:US10673745

    申请日:2003-09-29

    IPC分类号: G06F12/16

    摘要: A method for managing a data storage system includes copying data stored on a first storage subsystem to a second storage subsystem in an asynchronous mirroring process. A record is maintained on the second storage subsystem, indicative of locations at which the data have been updated on the first storage subsystem and have not yet been copied to the second storage subsystem. Upon receiving at the second storage subsystem, from a host processor, a request to access the data stored at a specified location on the data storage system, if the specified location is included in the record, the second storage subsystem initiates a synchronous transfer of the data at the specified location from the first storage subsystem.

    摘要翻译: 一种用于管理数据存储系统的方法包括在异步镜像处理中将存储在第一存储子系统上的数据复制到第二存储子系统。 维持在第二存储子系统上的记录,指示在第一存储子系统上数据已被更新并且尚未被复制到第二存储子系统的位置。 在第二存储子系统从主机处理器接收访问存储在数据存储系统上的指定位置的数据的请求时,如果指定的位置被包括在记录中,则第二存储子系统发起同步传送 来自第一个存储子系统的指定位置的数据。