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    Control method and storage device
    1.
    发明授权
    Control method and storage device 有权
    控制方法和存储设备

    公开(公告)号：US08225136B2

    公开(公告)日：2012-07-17

    申请号：US12480851

    申请日：2009-06-09

    申请人： Atsushi Igashira ,  Hideo Takahashi ,  Yoshihito Konta ,  Norihide Kubota

    发明人： Atsushi Igashira ,  Hideo Takahashi ,  Yoshihito Konta ,  Norihide Kubota

    IPC分类号： G06F11/10

    CPC分类号： G06F11/1076 ,  G06F2211/1059

    摘要： A control method includes the steps of storing data in a cache; generating parity data corresponding to the data stored in the cache and storing the parity data in a buffer; writing the data stored in the cache and the parity data stored in the buffer into a plurality of the storage units; reading the data and the parity data from the plurality of storage units; checking error over the read out data by using the read out parity data; storing, if an error is detected in the read out data and the read out parity data, data for reading a plurality of data constituting a stripe in each of the plurality of storage units in the buffer, regenerating parity data by using the plurality of data readout from the storage units; and overwriting the plurality of data and the parity data into the plurality of the storage units.

    摘要翻译： 控制方法包括将数据存储在高速缓存中的步骤; 产生与存储在高速缓存中的数据相对应的奇偶校验数据，并将奇偶校验数据存储在缓冲器中; 将存储在高速缓存中的数据和存储在缓冲器中的奇偶校验数据写入多个存储单元; 从多个存储单元读取数据和奇偶校验数据; 通过使用读出的奇偶校验数据检查读出的数据的错误; 存储如果在读出数据和读出的奇偶校验数据中检测到错误的数据，则用于读取在缓冲器中的多个存储单元中的每一个中构成条带的多个数据的数据，通过使用多个数据来再生奇偶校验数据 从存储单元读出; 并将多个数据和奇偶校验数据重写到多个存储单元中。

    DATA WRITING METHOD
    2.
    发明申请
    DATA WRITING METHOD 有权
    数据写入方法

    公开(公告)号：US20090235114A1

    公开(公告)日：2009-09-17

    申请号：US12369389

    申请日：2009-02-11

    申请人： Atsushi IGASHIRA ,  Hideo Takahashi ,  Yoshihito Konta ,  Norihide Kubota

    发明人： Atsushi IGASHIRA ,  Hideo Takahashi ,  Yoshihito Konta ,  Norihide Kubota

    IPC分类号： G06F11/20

    CPC分类号： G06F11/1435 ,  G06F11/1076 ,  G06F2211/1019 ,  G06F2211/1059

    摘要： According to an aspect of an embodiment, a method for controlling a controller connected to a plurality of storage units storing data, the controller including a cache and a buffer, the method comprising the steps of: storing data in the cache; generating parity data corresponding to the data and storing the parity data in the buffer; writing the data and the parity data into the plurality of the storage units; comparing the parity data stored in the buffer with the parity data written into and read out from at least one of the storage unit; deleting, when the parity data stored in the buffer is different from the parity data read out from the storage unit, the parity data from the buffer; and regenerating parity data from data stored in the cache and rewriting the regenerated parity data into at least one of the storage unit.

    摘要翻译： 根据实施例的一个方面，一种用于控制连接到存储数据的多个存储单元的控制器的方法，所述控制器包括高速缓存和缓冲器，所述方法包括以下步骤：将数据存储在所述高速缓存中; 产生与数据相对应的奇偶校验数据并将奇偶校验数据存储在缓冲器中; 将数据和奇偶校验数据写入多个存储单元; 将存储在缓冲器中的奇偶校验数据与写入并从存储单元中的至少一个读出的奇偶校验数据进行比较; 当存储在缓冲器中的奇偶校验数据与从存储单元读出的奇偶校验数据不同时，删除来自缓冲器的奇偶校验数据; 以及从存储在所述高速缓存中的数据重新生成奇偶校验数据，并将所述再生的奇偶校验数据重写到所述存储单元中的至少一个中。

    Data writing method
    3.
    发明授权
    Data writing method 有权
    数据写入方式

    公开(公告)号：US08015435B2

    公开(公告)日：2011-09-06

    申请号：US12369389

    申请日：2009-02-11

    申请人： Atsushi Igashira ,  Hideo Takahashi ,  Yoshihito Konta ,  Norihide Kubota

    发明人： Atsushi Igashira ,  Hideo Takahashi ,  Yoshihito Konta ,  Norihide Kubota

    IPC分类号： G06F11/00

    CPC分类号： G06F11/1435 ,  G06F11/1076 ,  G06F2211/1019 ,  G06F2211/1059

    摘要： According to an aspect of an embodiment, a method for controlling a controller connected to a plurality of storage units storing data, the controller including a cache and a buffer, the method comprising the steps of: storing data in the cache; generating parity data corresponding to the data and storing the parity data in the buffer; writing the data and the parity data into the plurality of the storage units; comparing the parity data stored in the buffer with the parity data written into and read out from at least one of the storage unit; deleting, when the parity data stored in the buffer is different from the parity data read out from the storage unit, the parity data from the buffer; and regenerating parity data from data stored in the cache and rewriting the regenerated parity data into at least one of the storage unit.

    摘要翻译： 根据实施例的一个方面，一种用于控制连接到存储数据的多个存储单元的控制器的方法，所述控制器包括高速缓存和缓冲器，所述方法包括以下步骤：将数据存储在所述高速缓存中; 产生与数据相对应的奇偶校验数据并将奇偶校验数据存储在缓冲器中; 将数据和奇偶校验数据写入多个存储单元; 将存储在缓冲器中的奇偶校验数据与写入并从存储单元中的至少一个读出的奇偶校验数据进行比较; 当存储在缓冲器中的奇偶校验数据与从存储单元读出的奇偶校验数据不同时，删除来自缓冲器的奇偶校验数据; 以及从存储在所述高速缓存中的数据重新生成奇偶校验数据，并将所述再生的奇偶校验数据重写到所述存储单元中的至少一个中。

    Data reading method
    4.
    发明授权
    Data reading method 有权
    数据读取方式

    公开(公告)号：US07949895B2

    公开(公告)日：2011-05-24

    申请号：US12259664

    申请日：2008-10-28

    申请人： Atsushi Igashira ,  Hideo Takahashi ,  Yoshihito Konta ,  Norihide Kubota

    发明人： Atsushi Igashira ,  Hideo Takahashi ,  Yoshihito Konta ,  Norihide Kubota

    IPC分类号： G06F11/00

    CPC分类号： G06F11/1088 ,  G06F11/1076 ,  G06F2211/1057 ,  G06F2211/1059

    摘要： According to an aspect of an embodiment, a method for controlling a controller connected to a plurality of storage units which are arranged in a redundant configuration, the controller reading data stored in the plurality of storage units in accordance with requests received from a host computer, the method comprising the steps of: receiving requests to read data successively from one of the storage units from the host computer; reading a part of requested target data from said one of the storage units; reading associated data and parity data stored in other storage units corresponding to other part of requested target data; generating other part of requested target data on the basis of the associated data and the parity data read out from the other storage units; and transmitting the part of the target data and the other part of the target data to the host computer.

    摘要翻译： 根据实施例的一个方面，一种用于控制连接到以冗余配置布置的多个存储单元的控制器的方法，所述控制器根据从主计算机接收的请求读取存储在所述多个存储单元中的数据， 该方法包括以下步骤：从主计算机接收从一个存储单元连续读取数据的请求; 从所述存储单元中的一个读取所请求的目标数据的一部分; 读取存储在与所请求的目标数据的其他部分相对应的其他存储单元中的关联数据和奇偶校验数据; 根据相关联的数据和从其他存储单元读出的奇偶校验数据产生所请求的目标数据的其他部分; 并将目标数据的一部分和目标数据的另一部分发送到主计算机。

    Disk management method, disk management device and storage system
    5.
    发明授权
    Disk management method, disk management device and storage system 有权
    磁盘管理方法，磁盘管理设备和存储系统

    公开(公告)号：US07925919B2

    公开(公告)日：2011-04-12

    申请号：US12234940

    申请日：2008-09-22

    申请人： Norihide Kubota ,  Hideo Takahashi ,  Yoshihito Konta ,  Atsushi Igashira ,  Mikio Ito ,  Hidejirou Daikokuya ,  Kazuhiko Ikeuchi ,  Chikashi Maeda ,  Yuji Noda ,  Tsuyoshi Nakagami

    发明人： Norihide Kubota ,  Hideo Takahashi ,  Yoshihito Konta ,  Atsushi Igashira ,  Mikio Ito ,  Hidejirou Daikokuya ,  Kazuhiko Ikeuchi ,  Chikashi Maeda ,  Yuji Noda ,  Tsuyoshi Nakagami

    IPC分类号： G06F11/00

    CPC分类号： G06F11/2082 ,  G11B20/1803 ,  G11B2020/1823 ,  G11B2220/41 ,  G11B2220/415

    摘要： A disk management method for managing a disk management device for writing and reading data to and from a disk drive in which a recording medium is managed in a first control unit. The disk management method includes an error checking operation for checking an error on the recording medium in the first control unit, an error correction operation for correcting the error detected in the error, an error correcting operation for correcting the error detected in the error checking operation after converting data including the error to the second control unit, a data loss registration operation for registering a region in which data are lost due to an inconsistency between the first control unit and second control unit in a data loss region table, and a data loss recovery operation for recovering the loss of data with reference to the data loss region table.

    摘要翻译： 一种用于管理磁盘管理装置的磁盘管理方法，用于向第一控制单元中管理记录介质的磁盘驱动器写入和读取数据。 磁盘管理方法包括用于检查第一控制单元中的记录介质上的错误的错误检查操作，用于校正在错误中检测到的错误的纠错操作，用于校正在错误检查操作中检测到​​的错误的纠错操作 在将包括错误的数据转换为第二控制单元之后，在数据丢失区域表中记录由于第一控制单元和第二控制单元之间的不一致而导致数据丢失的区域的数据丢失登记操作，以及数据丢失 参考数据丢失区域表恢复数据丢失的恢复操作。

    RAID apparatus, controller of RAID apparatus and write-back control method of the RAID apparatus
    6.
    发明授权
    RAID apparatus, controller of RAID apparatus and write-back control method of the RAID apparatus 有权
    RAID装置，RAID装置的控制器和RAID装置的回写控制方法

    公开(公告)号：US08364893B2

    公开(公告)日：2013-01-29

    申请号：US12179942

    申请日：2008-07-25

    申请人： Hidejirou Daikokuya ,  Mikio Ito ,  Kazuhiko Ikeuchi ,  Chikashi Maeda ,  Hideo Takahashi ,  Yoshihito Konta ,  Norihide Kubota

    发明人： Hidejirou Daikokuya ,  Mikio Ito ,  Kazuhiko Ikeuchi ,  Chikashi Maeda ,  Hideo Takahashi ,  Yoshihito Konta ,  Norihide Kubota

    IPC分类号： G06F12/16

    CPC分类号： G06F12/0804 ,  G06F12/0866 ,  G06F12/123

    摘要： A RAID apparatus includes a plurality of recording devices, a first adaptor connected to a first interface which is connected to a high-level apparatus, a controller for controlling processing of data transmitted by the high-level apparatus, and a second adaptor that connects to a second interface connected to a plurality of recording devices. The controller has a first memory area in which said data are stored, a second memory area used for a write-back of the data in said plurality of recording devices, a write-back information control unit controlling a write-back type of data stored in the first memory area and a usage state of the second memory area, a write-back data determination unit for determination of data to be written-back based on the write-back information, and a write-back execution unit for executing a write-back of the data to be written back on the plurality of recording devices.

    摘要翻译： RAID装置包括多个记录装置，连接到连接到高级装置的第一接口的第一适配器，用于控制由高级装置发送的数据的处理的控制器，以及连接到 连接到多个记录装置的第二接口。 控制器具有存储所述数据的第一存储区域，用于在所述多个记录装置中回写数据的第二存储区域，控制存储的数据的回写类型的回写信息控制单元 在所述第一存储器区域和所述第二存储区域的使用状态中，基于所述写回信息来确定要被写回的数据的写回数据确定单元，以及用于执行写入的写回执行单元 在要记录在多个记录装置上的数据的背面。