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    • 3. 发明授权
    • Fail-over storage system
    • 故障转移存储系统
    • US07447933B2
    • 2008-11-04
    • US11316463
    • 2005-12-21
    • Naoto MatsunamiKouji SonodaManabu KitamuraTakashi OedaYutaka Takata
    • Naoto MatsunamiKouji SonodaManabu KitamuraTakashi OedaYutaka Takata
    • G06F11/00
    • G06F11/2092G06F11/0727G06F11/0766G06F11/2025G06F11/2033G06F11/2043G06F11/2069
    • A storage system 1 including multiple slots for loading a block I/O interface controller, a file I/O interface controller, and any other kinds of interface controllers that are combined freely. The storage system 1 includes a management table that manages fail-over-enabled devices by grouping those devices in accordance with the interface type and the domain to which each device belongs; an information table that directs a fail-over procedure; and fail-over controlling means that takes over the processing of a failed interface controller belonging to a fail-over-enabled group. The fail-over system offers several modalities for monitoring failures, selecting takeover controllers and restoring functionality. Storage system 1 solves conventional problems by providing a system that can mount a plurality of file systems, and that resists multiple failures detected in a fail-over server.
    • 包括用于加载块I / O接口控制器的多个槽的存储系统1,文件I / O接口控制器和可以自由组合的任何其他类型的接口控制器。 存储系统1包括管理表,其通过根据每个设备所属的接口类型和域对这些设备进行分组来管理故障转移使能设备; 指导故障切换过程的信息表; 故障切换控制手段接管属于故障转移组的故障接口控制器的处理。 故障转移系统提供了几种监控故障模式,选择接管控制器和恢复功能。 存储系统1通过提供可以安装多个文件系统并且抵御在故障切换服务器中检测到的多个故障的系统来解决常规问题。
    • 7. 发明授权
    • Computer system and data sharing method between computers
    • 计算机之间的计算机系统和数据共享方法
    • US07117249B1
    • 2006-10-03
    • US09697088
    • 2000-10-25
    • Manabu KitamuraKenji YamagamiAkira YamamotoMinoru Kosuge
    • Manabu KitamuraKenji YamagamiAkira YamamotoMinoru Kosuge
    • G06F15/167G06F17/30G06F13/00
    • G06F3/0631G06F3/0617G06F3/0646G06F3/067G06F17/30067H04L67/1097Y10S707/99953Y10S707/99955
    • A data sharing method for use in a computer system provided with a first computer, a second computer and a data storage subsystem for connection with the first and second computers is disclosed. The data storage subsystem has a plurality of memory units and a control unit for controlling the plurality of memory units. The control unit forms a paired state of a first memory unit storing data for use by the first computer and a second memory unit, the paired state being so controlled as to match the contents of the first memory unit and those of the second memory unit. When data used by the first computer are to be used by the second computer, the control unit releases the paired state between the first memory unit and the second memory unit to stop updating of the first memory unit to be reflected in the second memory unit. After that, the control unit re-maps a third memory unit used by the second computer and the second memory unit with each other, and so performs control that the access by the second computer to the third memory unit be made to the second memory unit.
    • 公开了一种用于计算机系统的数据共享方法,该计算机系统具有第一计算机,第二计算机和用于与第一和第二计算机连接的数据存储子系统。 数据存储子系统具有多个存储单元和用于控制多个存储单元的控制单元。 控制单元形成第一存储单元的配对状态,该第一存储单元存储用于由第一计算机和第二存储器单元使用的数据,所述成对状态被如此控制以匹配第一存储器单元和第二存储器单元的内容。 当由第一计算机使用的数据由第二计算机使用时,控制单元释放第一存储器单元和第二存储器单元之间的配对状态,以停止第一存储器单元的更新以反映在第二存储器单元中。 之后,控制单元重新映射由第二计算机和第二存储器单元使用的第三存储器单元,并且因此执行控制,使得第二计算机对第三存储器单元的访问被做成到第二存储器单元 。
    • 9. 发明授权
    • Storage unit and storage unit subsystem
    • 存储单元和存储单元子系统
    • US6098191A
    • 2000-08-01
    • US327158
    • 1999-06-03
    • Akira YamamotoYasutomo YamamotoManabu KitamuraTakao Satoh
    • Akira YamamotoYasutomo YamamotoManabu KitamuraTakao Satoh
    • G06F12/16G06F3/06G06F11/10G11C29/00
    • G06F11/1076G06F2211/1009
    • An intermediate value derived from old and new data record values or old and new data themselves are sent from a control unit to a disk unit which stores a parity record as information necessary for updating parity. The disk unit reads an old parity record and generates a new value of parity record based on the read old parity and the information received from the control unit. The generated new value is stored in an empty record on the storage medium to which a read/write head is first positioned after the generation of the new value and in which effective data has not been stored. In a disk array system, a time required to update the parity record due to the updating of the data record is reduced and a performance of the storage unit subsystem is improved.
    • 从旧的和新的数据记录值或旧的和新的数据本身导出的中间值从控制单元发送到存储奇偶校验记录的磁盘单元,作为更新奇偶校验所需的信息。 磁盘单元读取旧的奇偶校验记录,并根据读取的旧奇偶校验和从控制单元接收的信息生成奇偶校验记录的新值。 所生成的新值被存储在存储介质上的空记录中,该记录在读/写头首先定位在新值之后并且其中没有存储有效数据。 在磁盘阵列系统中,减少了由于数据记录的更新而更新奇偶校验记录所需的时间,并提高了存储单元子系统的性能。