公开(公告)号：US07398422B2

公开(公告)日：2008-07-08

申请号：US10931543

申请日：2004-08-31

申请人： Takashi Amano ,  Kenji Yamagami

发明人： Takashi Amano ,  Kenji Yamagami

IPC分类号： G06F11/00

CPC分类号： G06F11/1469 ,  G06F11/1471 ,  G06F2201/84 ,  Y10S707/99953

摘要： A storage system maintains a journal and a snapshot of one or more data volumes. Two journal entry types are maintained, an AFTER journal entry and a BEFORE journal entry. Two modes of data recovery are provided: “fast” recovery and “undo-able” recovery. A combination of both recovery modes allows the user to quickly recover a targeted data state.

摘要翻译： 存储系统维护一个日志和一个或多个数据卷的快照。 维护两个日记帐分录类型，一个AFTER日记帐分录和一个BEFORE日记帐分录。 提供了两种数据恢复模式：“快速”恢复和“可撤销”恢复。 两种恢复模式的组合允许用户快速恢复目标数据状态。

公开(公告)号：US07243116B2

公开(公告)日：2007-07-10

申请号：US10946034

申请日：2004-09-22

申请人： Susumu Suzuki ,  Kenji Yamagami

发明人： Susumu Suzuki ,  Kenji Yamagami

IPC分类号： G06F12/00 ,  G06F17/30 ,  G06F3/06 ,  G06F13/00

CPC分类号： G06F11/2058 ,  G06F3/0605 ,  G06F3/0622 ,  G06F3/065 ,  G06F3/0659 ,  G06F3/067 ,  G06F3/0689 ,  G06F11/1466 ,  G06F11/2064 ,  G06F11/2087 ,  Y10S707/99953 ,  Y10S707/99955

摘要： In creating replicas to data of a storage volume in a storage system, a technique in which labor for issuing instructions from a processor can be reduced and then data consistency of related volumes can be secured is provided. A single replication instruction including designated information is issued for data of a logical unit serving as a copy source and a copy destination from a replication-control program of the processor. A control unit of the storage system possesses a multiple-replica creation program which enables a processing for creating replicas while securing the data consistency when an access such as a update or reference occurs for a group including a plurality of pairs of copy-source volume and copy-destination volume based on reception of the instruction. A save volume is provided to identify and control data save and update state by copy-source save information and copy-destination update information at the shared memory.

摘要翻译： 在创建存储系统中的存储卷的数据的副本时，提供了可以减少用于从处理器发出指令的劳动，并且然后可以确保相关卷的数据一致性的技术。 从处理器的复制控制程序发出包含指定信息的单个复制指令，用于作为复制源和复制目的地的逻辑单元的数据。 存储系统的控制单元具有多重副本创建程序，其能够在为包括多对复制源卷的组发生诸如更新或引用的访问时在保证数据一致性的同时进行创建副本的处理，并且 基于接收指令的复制目的地卷。 提供保存卷以通过复制源保存信息和复制目的地更新信息在共享存储器上识别和控制数据保存和更新状态。

公开(公告)号：US07139826B2

公开(公告)日：2006-11-21

申请号：US09905440

申请日：2001-07-13

申请人： Naoki Watanabe ,  Kenji Yamagami

发明人： Naoki Watanabe ,  Kenji Yamagami

IPC分类号： G06F15/173

CPC分类号： G06F11/2082 ,  G06F11/1456 ,  G06F11/1464 ,  G06F11/2071

摘要： A method of performing an initial copy procedure in a remote copy system, the method including: configuring a network path between a first disk subsystem and a second disk subsystem to increase the speed of data transmission across the network path; configuring the remote copy system for a remote copy operation; performing an initial copy operation to copy data across the network path from the first disk subsystem to the second disk subsystem; and adjusting the network path to reduce the speed of data transmission across the network path. A remote copy system, including: a first disk subsystem located at a first site; and a second disk subsystem capable to be coupled to the first disk subsystem via a network path, with the network path capable to be configured to increase or decrease the speed of data transmission from the first disk subsystem to the second disk subsystem.

公开(公告)号：US20060149798A1

公开(公告)日：2006-07-06

申请号：US11365096

申请日：2006-02-28

申请人： Kenji Yamagami

发明人： Kenji Yamagami

IPC分类号： G06F12/00

CPC分类号： G06F11/1471 ,  G06F11/1469 ,  G06F2201/84

摘要： A storage system maintains a journal and a snapshot of one or more data volumes. Two journal entry types are maintained, an AFTER journal entry and a BEFORE journal entry. Two modes of data recovery are provided: “fast” recovery and “undo-able” recovery. A combination of both recovery modes allows the user to quickly recover a targeted data state.

摘要翻译： 存储系统维护一个日志和一个或多个数据卷的快照。 维护两个日记帐分录类型，一个AFTER日记帐分录和一个BEFORE日记帐分录。 提供了两种数据恢复模式：“快速”恢复和“可撤销”恢复。 两种恢复模式的组合允许用户快速恢复目标数据状态。

公开(公告)号：US20050283576A1

公开(公告)日：2005-12-22

申请号：US11212587

申请日：2005-08-29

申请人： Kenji Yamagami ,  Kazuhisa Fujimoto ,  Yasuo Kurosu ,  Hisao Honma

发明人： Kenji Yamagami ,  Kazuhisa Fujimoto ,  Yasuo Kurosu ,  Hisao Honma

IPC分类号： G06F3/06 ,  G06F11/20 ,  G06F12/00 ,  G06F12/08 ,  G06F13/00 ,  G06F13/12

CPC分类号： G06F11/1666 ,  G06F3/061 ,  G06F3/0613 ,  G06F3/0626 ,  G06F3/0658 ,  G06F3/0659 ,  G06F3/0683 ,  G06F3/0689 ,  G06F11/20 ,  G06F11/201 ,  G06F12/084 ,  G06F12/0866

摘要： A storage control apparatus is coupled to a central processing unit (CPU) and a storage unit to control input/output of data between the CPU and the storage unit. The storage control apparatus has at least two processors coupled to the CPU and the storage unit, a cashe memory (CM) unit for temporarily storing data of the storage unit, a shared memory (SM) unit for storing information concerning control of the CM unit and the storage unit, and a selector coupled to the at least two processors, the CM unit and the SM unit through access paths to selectively apply access requests from the at least two processors to the CM unit and the SM unit.

公开(公告)号：US20050235016A1

公开(公告)日：2005-10-20

申请号：US10823619

申请日：2004-04-14

申请人： Takashi Amano ,  Kenji Yamagami

发明人： Takashi Amano ,  Kenji Yamagami

IPC分类号： G06F11/14 ,  G06F17/30

CPC分类号： G06F11/1435 ,  G06F11/1471 ,  G06F2201/81 ,  G06F2201/84 ,  Y10S707/99952 ,  Y10S707/99953 ,  Y10S707/99955 ,  Y10S707/99956

摘要： A method and apparatus which provide solutions for avoiding journal overflow in after and before journal methods of a backup and recovery system used with a storage system. The after journal method solutions, which are conducted when the amount of free space reaches a threshold, include periodically taking a new snapshot and deleting the oldest journal, periodically taking a new logical snapshot and deleting the oldest journal, stopping the taking journal entries when the journal volume is full, and stopping the taking journal entries when the journal volume is full and then switching to bitmap management. The before journal method solution, which is conducted when the amount of free space reaches a threshold, includes applying wrap-around overwriting to overwrite the oldest journal entry by the newest journal entry.

摘要翻译： 一种方法和装置，用于在与存储系统一起使用的备份和恢复系统的日志方法之后和之后提供避免日志溢出的解决方案。 当可用空间达到阈值时进行的后期日记方法解决方案包括定期采取新的快照和删除最旧的日志，定期采取新的逻辑快照并删除最旧的日志，停止采用日记帐分录 日志卷已满，当日记卷已满时，停止采集日记帐，然后切换到位图管理。 当可用空间量达到阈值时进行的以前的日记方法解决方案包括应用环绕覆盖以覆盖最新的日记帐分录中的最旧日记帐分录。

公开(公告)号：US20050182890A1

公开(公告)日：2005-08-18

申请号：US10834989

申请日：2004-04-30

申请人： Kenji Yamagami

发明人： Kenji Yamagami

IPC分类号： G06F13/10 ,  G06F3/06 ,  G06F12/00 ,  G06F12/08

CPC分类号： G06F11/1451 ,  G06F3/0605 ,  G06F3/0608 ,  G06F3/0631 ,  G06F3/0632 ,  G06F3/067 ,  G06F3/0689 ,  G06F11/1458 ,  G06F12/0866

摘要： A storage control system judges whether the data pattern of data exchanged with a higher-level device (hereafter “data”) conforms to one or a plurality of write-excluded data patterns comprised in write-excluded data pattern information prepared in advance. If a negative judgment result is obtained, the storage control subsystem stores the data in a logical device formed on a disk storage device. If, on the other hand, a positive judgment result is obtained, the storage control subsystem erases the data without storing in a logical device.

摘要翻译： 存储控制系统判断与上级装置（以下称为“数据”）交换的数据的数据模式是否符合预先准备的写入排除数据模式信息中包含的一个或多个写入排除数据模式。 如果获得否定判断结果，则存储控制子系统将数据存储在形成于盘存储装置上的逻辑装置中。 另一方面，如果获得肯定判断结果，则存储控制子系统在不存储在逻辑设备中的情况下擦除数据。

公开(公告)号：US06907498B2

公开(公告)日：2005-06-14

申请号：US10095582

申请日：2002-03-13

申请人： Manabu Kitamura ,  Kenji Yamagami ,  Tatsuya Murakami

发明人： Manabu Kitamura ,  Kenji Yamagami ,  Tatsuya Murakami

IPC分类号： G06F12/00 ,  G06F15/16 ,  G06F15/173

CPC分类号： G06F3/0605 ,  G06F3/0631 ,  G06F3/0665 ,  G06F3/0683 ,  Y10S707/99953 ,  Y10S707/99956

摘要： A computer system which has a plurality of computers and a storage device subsystem connected to the plurality of computers. The storage device subsystem has a plurality of storage devices and a plurality of interfaces, through which the subsystem is connected to the computers. One of the plurality of computers has a management means for holding therein data indicative of the storage devices and a connection relationship between the computers and storage device subsystem. Each computer, when wanting a new device, informs the management means of its capacity and type. The management means receives its notification and selects one of the storage devices which satisfies the request. And the management means instructs the storage device subsystem to set predetermined data in such a manner that the computer can access the selected device. The management means also returns predetermined data to the computer as a device assignment requester, the assignment requester computer modifies setting thereof to allow the computer in question can use the assigned device.

公开(公告)号：US06854034B1

公开(公告)日：2005-02-08

申请号：US09642817

申请日：2000-08-22

申请人： Manabu Kitamura ,  Kenji Yamagami ,  Tatsuya Murakami

发明人： Manabu Kitamura ,  Kenji Yamagami ,  Tatsuya Murakami

IPC分类号： G06F12/00 ,  G06F15/16 ,  G06F15/173

CPC分类号： G06F3/0605 ,  G06F3/0631 ,  G06F3/0665 ,  G06F3/0683 ,  Y10S707/99953 ,  Y10S707/99956

摘要： A computer system which has a plurality of computers and a storage device subsystem connected to the plurality of computers. The storage device subsystem has a plurality of storage devices and a plurality of interfaces, through which the subsystem is connected to the computers. One of the plurality of computers has a management means for holding therein data indicative of the storage devices and a connection relationship between the computers and storage device subsystem. Each computer, when wanting a new device, informs the management means of its capacity and type. The management means receives its notification and selects one of the storage devices which satisfies the request. And the management means instructs the storage device subsystem to set predetermined data in such a manner that the computer can access the selected device. The management means also returns predetermined data to the computer as a device assignment requester, the assignment requester computer modifies setting thereof to allow the computer in question can use the assigned device.

公开(公告)号：US20050015416A1

公开(公告)日：2005-01-20

申请号：US10621791

申请日：2003-07-16

申请人： Kenji Yamagami

发明人： Kenji Yamagami

IPC分类号： G06F12/00

CPC分类号： G06F11/1471 ,  G06F11/1469 ,  G06F2201/84

摘要： A storage system maintains a journal and a snapshot of one or more data volumes. Two journal entry types are maintained, an AFTER journal entry and a BEFORE journal entry. Two modes of data recovery are provided: “fast” recovery and “undo-able” recovery. A combination of both recovery modes allows the user to quickly recover a targeted data state.

摘要翻译： 存储系统维护一个日志和一个或多个数据卷的快照。 维护两个日记帐分录类型，一个AFTER日记帐分录和一个BEFORE日记帐分录。 提供了两种数据恢复模式：“快速”恢复和“可撤销”恢复。 两种恢复模式的组合允许用户快速恢复目标数据状态。