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    • 9. 发明授权
    • Device for performance tuning in a system
    • 用于系统中性能调整的设备
    • US07809906B2
    • 2010-10-05
    • US10855356
    • 2004-05-28
    • Yoshiaki EguchiYasutomo YamamotoAi SatoyamaAkinobu Shimada
    • Yoshiaki EguchiYasutomo YamamotoAi SatoyamaAkinobu Shimada
    • G06F12/00
    • G06F3/0653G06F3/061G06F3/0631G06F3/0635G06F3/0647G06F3/067G06F11/3485G06F2206/1012Y10S707/99932
    • In a storage subsystem, performance tuning is performed with respect to whole logical devices including external storage subsystems that are not directly connected to host computers.Physical storage units presented by the external storage subsystems are defined as logical devices of the storage subsystem itself, and I/O processing requests from the host computers are relayed to those logical devices. At the time of relaying, I/O processing conditions are monitored. When there exists an external storage subsystem whose load is high, then, operating conditions of ports and processors are examined. In the case where the load can be reduced by changing the configuration of those ports and processors, the configuration is changed to reduce the load. In the case where the load can not be reduced, data is migrated from a logical device having a high load to a logical device having a sufficient performance.
    • 在存储子系统中,对于整个逻辑设备执行性能调整,包括不直接连接到主机的外部存储子系统。 由外部存储子系统呈现的物理存储单元被定义为存储子系统本身的逻辑设备,并且来自主计算机的I / O处理请求被中继到这些逻辑设备。 在中继时,监视I / O处理条件。 当存在负载高的外部存储子系统时,检查端口和处理器的工作条件。 在通过改变这些端口和处理器的配置可以减少负载的情况下,改变配置以减少负载。 在负载不能减小的情况下,数据从具有高负载的逻辑设备迁移到具有足够性能的逻辑设备。