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    • 32. 发明授权
    • Storage system and communications path control method for storage system
    • 存储系统的存储系统和通信路径控制方法
    • US07451341B2
    • 2008-11-11
    • US10994339
    • 2004-11-23
    • Takuya OkakiHirofumi NakamuraHironori DohiMasayuki Tanabe
    • Takuya OkakiHirofumi NakamuraHironori DohiMasayuki Tanabe
    • G06F11/00
    • G06F11/201
    • A method for controlling communications paths in a storage system provided between a storage device and a plurality of host devices. The method includes: respectively monitoring communications statuses between each of the host devices and the storage device; detecting whether a prescribed temporary failure, which can be corrected without switching communications paths, has occurred, based upon the detected communications statuses; a switching instruction step of not outputting a switching request signal for requesting switching from a failed communications path to a to-be-used communications path, before a number of occurrence of the prescribed temporary failure thus detected reaches a threshold value which is equal to or larger than 2, and outputting the switching request signal only when the number of occurrence of the prescribed temporary failure reaches the threshold value; and selecting the to-be-used communications path, from among the plurality of communications paths, on the basis of the switching request signal.
    • 一种用于控制设置在存储设备和多个主机设备之间的存储系统中的通信路径的方法。 该方法包括:分别监视每个主机设备和存储设备之间的通信状态; 基于检测到的通信状况,检测是否发生了可以在不切换通信路径的情况下被校正的规定的临时故障; 切换指令步骤,在所检测到的规定临时故障的数目达到等于或等于的阈值之前,不输出用于请求从故障通信路径切换到待使用的通信路径的切换请求信号 大于2,并且仅当规定的临时故障的发生次数达到阈值时才输出切换请求信号; 以及根据切换请求信号从多个通信路径中选择待使用的通信路径。