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    • 2. 发明授权
    • Network storage system, management method therefor, and control program product therefor
    • 网络存储系统及其管理方法及其控制程序产品
    • US08001323B2
    • 2011-08-16
    • US12041200
    • 2008-03-03
    • Kazuya Honma
    • Kazuya Honma
    • G06F12/00
    • G06F13/385G06F3/061G06F3/0632G06F3/067
    • A storage system, a storage management method, and a control program product are provided. The storage system is improved in comfortability, convenience, and economy by reducing the amount of copies in a storage device in a network storage system, by heightening storage efficiency and increasing an access speed. In a network storage system in which a plurality of client terminals are directly connected to a storage device via a network, the storage device includes an MV logical disk that stores read-only shared data and a BV logical disk from/onto which data specific to each client terminal is read/written. A control unit that controls read/write operations includes, with an access management table, an LDK management table which has a reference logical disk number column used to issue a command to refer to the MV logical disk when data other than the write data is read.
    • 提供存储系统,存储管理方法和控制程序产品。 通过提高存储效率并提高访问速度,通过减少网络存储系统中的存储设备中的副本数量来提高存储系统的舒适性,便利性和经济性。 在多个客户机终端通过网络直接连接到存储装置的网络存储系统中,存储装置包括存储只读共享数据的MV逻辑磁盘和专用于 每个客户端被读/写。 控制读/写操作的控制单元包括具有访问管理表的LDK管理表,该LDK管理表具有参考逻辑盘号列,用于在读取写入数据以外的数据时发出指向MV逻辑磁盘的命令 。
    • 3. 发明授权
    • Input/output control unit, disk array apparatus, input/output control method, and program
    • 输入/输出控制单元,磁盘阵列装置,输入/输出控制方法和程序
    • US08151049B2
    • 2012-04-03
    • US12354636
    • 2009-01-15
    • Kazuya Honma
    • Kazuya Honma
    • G06F13/00G06F13/28G06F15/173G06F11/00
    • G06F11/2092G06F11/201
    • An input/output controller, including: a first/a second input/output units that sends and receives data to and from a first and a second external apparatus, a third input/output unit operating in one of a plurality of working modes including a first/a second working mode for sending and receiving data to and from the first/the second external apparatus, an abnormal state detecting unit which detects that the first input/output unit or the second input/output unit is in an abnormal state and a working mode setting unit which makes the third input/output unit operate in the first/the second working mode when it is detected that the first/the second input/output unit is in an abnormal state.
    • 一种输入/输出控制器,包括:第一/第二输入/输出单元,用于向第一和第二外部设备发送数据和从第一和第二外部设备接收数据;第三输入/输出单元,其以多个工作模式中的一个工作,包括 第一/第二工作模式,用于向第一/第二外部设备发送和接收数据;异常状态检测单元,其检测第一输入/输出单元或第二输入/输出单元处于异常状态;以及 工作模式设定单元,当检测到第一/第二输入/输出单元处于异常状态时,使得第三输入/输出单元在第一/第二工作模式下工作。
    • 7. 发明授权
    • Disk array apparatus and interrupt execution method of the same
    • 磁盘阵列设备和中断执行方法相同
    • US06766400B2
    • 2004-07-20
    • US09892848
    • 2001-06-28
    • Kazuya HonmaTakuya Saegusa
    • Kazuya HonmaTakuya Saegusa
    • G06F1324
    • G06F12/0868G06F3/0613G06F3/0659G06F3/0689G06F13/24G06F2212/261
    • A disk array apparatus and an interrupt execution method of the same enables command processing received from an upper level apparatus to be executed in high-speed by reducing rate of the interrupt and substantial processing speed not to decrease even when a write command from the upper level apparatus is continuously executed. A configuration is capable of executing selectively either an immediate interrupt or a delay interrupt. Selection is made to execute the immediate interrupt in the case of a write command while in the case of a read-out command, the delay interrupt is selected. Moreover, Judgment whether or not competition of page occurs when the write command is detected, namely whether or not a region of a cache memory that becomes execution object of the command is used is performed. Only when competition of the page occurs, handling is switched from general delay interrupt to an immediate interrupt. It is possible to reduce waiting time caused by competition of the page while immediately releasing the region of the cache memory that becomes execution object of the command.
    • 一种磁盘阵列装置及其中断执行方法使得能够通过降低中断的速率并且即使当来自上级的写命令也不降低时,从高级装置接收到的命令处理能够高速执行 设备被连续执行。 配置能够选择性地执行即时中断或延迟中断。 选择在写命令的情况下执行即时中断,而在读出命令的情况下,选择延迟中断。 此外,判断在检测到写入命令时是否发生页面的竞争,即是否使用成为命令的执行对象的高速缓冲存储器的区域。 只有当页面的竞争发生时,处理从一般延迟中断切换到即时中断。 可以在立即释放成为该命令的执行对象的高速缓冲存储器的区域的同时减少页面竞争引起的等待时间。