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    Data mirroring system using journal data
    121.
    发明公开
    Data mirroring system using journal data 审中-公开
    Datenspiegelungssystem unter Verwendung von Journaldaten

    公开(公告)号：EP1837769A2

    公开(公告)日：2007-09-26

    申请号：EP07010949.1

    申请日：2004-04-16

    Applicant: Hitachi, Ltd.

    Inventor： Hirakawa, Yusuke ,  Arakawa, Hiroshi ,  Takeda, Takahiko ,  Sato, Takao

    IPC: G06F11/20

    CPC classification number: G06F11/2076 ,  G06F11/2058 ,  G06F11/2064 ,  G06F11/2069 ,  G06F11/2071 ,  G06F11/2074 ,  G06F11/2082 ,  G06F2201/855 ,  H04L67/1095 ,  Y10S707/99953

    Abstract: A.first storage system stores information relating to the updating of data stored in that system as a journal. More specifically, the journal is composed of a copy of data that was used for updating and update information such as a write command used during updating. Furthermore, the second storage system acquires the journal via a communication line between the first storage system and the second storage system. The second storage system holds a duplicate of the data held by the first storage system and updates the data corresponding to the data of the first storage system in the data update order of the first storage system by using the journal.

    Abstract translation: 第一存储系统存储与该系统中存储的数据的更新有关的信息作为日志。 更具体地说，日志由用于更新和更新诸如在更新期间使用的写入命令的信息的数据的副本组成。 此外，第二存储系统经由第一存储系统和第二存储系统之间的通信线路获取日志。 第二存储系统保存由第一存储系统保存的数据的副本，并通过使用日志更新与第一存储系统的数据更新顺序相对应的数据的数据。

    Storage system and data processing system
    123.
    发明公开
    Storage system and data processing system 有权
    存储系统和数据处理系统

    公开(公告)号：EP1796004A1

    公开(公告)日：2007-06-13

    申请号：EP07005275.8

    申请日：2005-02-01

    Applicant: Hitachi, Ltd.

    Inventor： Hirakawa, Yusuke ,  Asaka, Yoshihiro

    IPC: G06F11/20

    CPC classification number: G06F11/2082 ,  G06F3/0601 ,  G06F11/2069 ,  G06F11/2074 ,  G06F2003/0697 ,  G06F2201/855

    Abstract: A storage system comprises a data set storage region or storing a data set containing data and update data for managing this data, and a control section. The data set storage region is divided into a plurality of storage regions including a first storage region and a second storage region. The control section generates a first data set containing first data and first update data which is update data for same, stores at least the first data of this first data set in the first storage region, generates a second data set containing second data and second update data which is update data for same, and stores at least the second data of this second data set in the second storage region, which is separate from the first storage region.

    Abstract translation: 存储系统包括数据集存储区或存储包含用于管理该数据的数据和更新数据的数据集，以及控制部分。 数据组存储区域被分成包括第一存储区域和第二存储区域的多个存储区域。 控制部分产生包含第一数据和作为更新数据的第一更新数据的第一数据集，至少将第一数据集的第一数据存储在第一存储区中，产生包含第二数据和第二更新的第二数据集 数据是相同的更新数据，并且至少将该第二数据组的第二数据存储在与第一存储区域分离的第二存储区域中。

    Storage system and data processing system
    125.
    发明公开
    Storage system and data processing system 有权
    Speichersystem和Datenverarbeitungssystem

    公开(公告)号：EP1624376A2

    公开(公告)日：2006-02-08

    申请号：EP05250541.9

    申请日：2005-02-01

    Applicant: Hitachi, Ltd.

    Inventor： Hirakawa, Yusuke, c/o Hitachi, Ltd. ,  Asaka, Yoshihiro, c/o Hitachi, Ltd.

    IPC: G06F12/00

    CPC classification number: G06F11/2082 ,  G06F3/0601 ,  G06F11/2069 ,  G06F11/2074 ,  G06F2003/0697 ,  G06F2201/855

    Abstract: A storage system comprises a data set storage region or storing a data set containing data and update data for managing this data, and a control section. The data set storage region is divided into a plurality of storage regions including a first storage region and a second storage region. The control section generates a first data set containing first data and first update data which is update data for same, stores at least the first data of this first data set in the first storage region, generates a second data set containing second data and second update data which is update data for same, and stores at least the second data of this second data set in the second storage region, which is separate from the first storage region.

    Abstract translation: 存储系统包括数据集存储区域或存储包含用于管理该数据的数据和更新数据的数据集，以及控制部分。 数据组存储区域被分成包括第一存储区域和第二存储区域的多个存储区域。 控制部分生成包含第一数据的第一数据集和作为其的更新数据的第一更新数据，至少存储第一数据集的第一数据在第一存储区域中，生成包含第二数据和第二更新的第二数据集 数据，其是与其相同的更新数据，并且将至少第二数据集的第二数据存储在与第一存储区域分离的第二存储区域中。

    Data restoration method using a log and corresponding storage subsystem
    126.
    发明公开
    Data restoration method using a log and corresponding storage subsystem 审中-公开
    Datenwiederherstellungsverfahren mittels einer Protokolldatei und entsprechendes Speichersubsystem

    公开(公告)号：EP1562117A2

    公开(公告)日：2005-08-10

    申请号：EP04003192.4

    申请日：2004-02-12

    Applicant: Hitachi, Ltd.

    Inventor： Eguchi, Yoshiaki c/o Hitachi, Ltd. ,  Yamamoto, Yasutomo c/o Hitachi, Ltd. ,  Arakawa, Hiroshi c/o Hitachi, Ltd. ,  Hirakawa, Yusuke c/o Hitachi, Ltd.

    IPC: G06F11/14

    CPC classification number: G06F11/1471 ,  G06F11/1464 ,  G06F11/1469 ,  G06F11/2071 ,  G06F2201/855

    Abstract: The data up to a point of time whereat failure has occurred will be restored at high speed at a remote site without imposing any burden on a host. The first storage system on the master side processes an I/O request from the host, and as a result of I/O processing to the second storage system on the remote side, transmits the update data. The second storage system retains data received from the first storage system as update log data. The host transmits a command for settling a state of an application to the first storage system as data, and the first storage system transmits the data to the second storage system. The host and the second storage system both retain an identifier corresponding to the command, and relate the identifier to the log data. Thereby, the host designates the identifier at any given time, whereby the second storage system restores the data at any given time.

    Abstract translation: 直到发生故障的时间点的数据将在远程站点高速恢复，而不会对主机造成任何负担。 主机侧的第一存储系统处理来自主机的I / O请求，并且作为对远程侧的第二存储系统的I / O处理的结果，发送更新数据。 第二存储系统将从第一存储系统接收的数据保留为更新日志数据。 主机向第一存储系统发送用于确定应用状态的命令作为数据，并且第一存储系统将数据发送到第二存储系统。 主机和第二存储系统都保留对应于该命令的标识符，并将该标识符与日志数据相关联。 因此，主机在任何给定时间指定标识符，由此第二存储系统在任何给定时间恢复数据。

    Remote copy system
    128.
    发明公开
    Remote copy system 审中-公开
    Fernkopiersystem

    公开(公告)号：EP1505504A2

    公开(公告)日：2005-02-09

    申请号：EP03021756.6

    申请日：2003-09-25

    Applicant: Hitachi, Ltd.

    Inventor： Watanabe, Naoki, Hitachi, Ltd.

    IPC: G06F11/08

    CPC classification number: G06F11/2074 ,  G06F11/2058 ,  G06F2201/855

    Abstract: A first storage unit system (104a) and a second storage unit system (104b) are connected together via a third storage unit system (104c). When executing a remote copy process, the first storage unit system responds to a write request received from a computer (102a) to transmit to the third storage unit system a journal having write data and address information indicative of a storage position at which the write data is written and requests the third storage unit system to write the journal. The second storage unit system receives control information (107a) issued by the first storage unit system and including the storage position of the journal and on the basis of the control information, reads the journal from the third storage unit system. Then, the second storage unit system follows address information contained in the journal to write the write date contained in the journal to a disk (210b) inside the second storage unit system.

    Abstract translation: 第一存储单元系统（104a）和第二存储单元系统（104b）经由第三存储单元系统（104c）连接在一起。 当执行远程复制处理时，第一存储单元系统响应从计算机（102a）接收的写入请求，向第三存储单元系统发送具有写入数据的日志和指示存储位置的地址信息， 被写入并请求第三个存储单元系统写入日志。 第二存储单元系统接收由第一存储单元系统发出的控制信息（107a）并且包括日志的存储位置，并且基于控制信息从第三存储单元系统读取日志。 然后，第二存储单元系统跟随日志中包含的地址信息，以将日志中包含的写日期写入第二存储单元系统内的盘（210b）。

    Data processing system with improved data transfer
    129.
    发明公开
    Data processing system with improved data transfer 审中-公开
    Datenverarbeitungssystem mit verbicultem Datentransfer

    公开(公告)号：EP1455265A2

    公开(公告)日：2004-09-08

    申请号：EP03013273.2

    申请日：2003-06-12

    Applicant: Hitachi, Ltd.

    Inventor： Takeda, Takahiko, Hitachi, Ltd., Intell. Prop. Gr. ,  Asaka, Yoshihiro, Hitachi, Ltd., Intell. Prop. Gr. ,  Yamagami, Kenji, Hitachi, Ltd., Intell. Prop. Gr. ,  Suzuki, Katsuyoshi, Hitachi, Ltd., Intel. Prop. Gr ,  Shirogane, Tetsuya, Hitachi, Ltd., Intel. Prop. Gr

    IPC: G06F3/06 ,  G06F11/20

    CPC classification number: G06F11/2066 ,  G06F3/0601 ,  G06F11/2071 ,  G06F2003/0697 ,  G06F2201/855 ,  Y10S707/99953

    Abstract: A data processing system (50) includes a first storage system (10) including a first host (100A) and a first storage subsystem (200A). The first host has access to a first copy manager that is operable to manage a data replication operation. A second storage system (20) includes a second host (100B) and a second storage subsystem (200B). The second host has access to a second copy manager that is operable to manage a data replication operation. A first communication link (48) is coupled to the first storage system (10) and the second storage system (20) to exchange management information between the first and second storage systems in order to manage the data replication operation. A data transfer path (68) is configured to transfer data stored in the first storage subsystem (200A) to the second storage subsystem (200B) and replicate the data of the first storage subsystem (200A) in the second storage subsystem (200B). The data transfer path (68) is different from the first communication link (48).

    Abstract translation: 数据处理系统（50）包括包括第一主机（100A）和第一存储子系统（200A）的第一存储系统（10）。 第一个主机可以访问可操作来管理数据复制操作的第一个副本管理器。 第二存储系统（20）包括第二主机（100B）和第二存储子系统（200B）。 第二个主机可以访问可操作以管理数据复制操作的第二副本管理器。 第一通信链路（48）耦合到第一存储系统（10）和第二存储系统（20），以在第一和第二存储系统之间交换管理信息，以便管理数据复制操作。 数据传输路径（68）被配置为将存储在第一存储子系统（200A）中的数据传送到第二存储子系统（200B）并复制第二存储子系统（200B）中的第一存储子系统（200A）的数据。 数据传输路径（68）与第一通信链路（48）不同。

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