公开(公告)号：US20110296103A1

公开(公告)日：2011-12-01

申请号：US13116298

申请日：2011-05-26

申请人： Atsushi IGASHIRA ,  Hideo Takahashi ,  Norihide Kubota ,  Kenji Kobayashi ,  Hidejirou Daikokuya ,  Kazuhiko Ikeuchi ,  Chikashi Maeda

发明人： Atsushi IGASHIRA ,  Hideo Takahashi ,  Norihide Kubota ,  Kenji Kobayashi ,  Hidejirou Daikokuya ,  Kazuhiko Ikeuchi ,  Chikashi Maeda

IPC分类号： G06F12/00

CPC分类号： G06F11/1096 ,  G06F3/0607 ,  G06F3/0632 ,  G06F3/0689 ,  G06F11/1092

摘要： According to an embodiment, a storage apparatus including: a plurality of storage media of which a first RAID is composed, a logical storage area of the first RAID for storing data being set over; a plurality of expansion storage media of which a second RAID is composed; a spare storage medium that is different from in any of the storage media or the expansion storage media; and a configuration control unit that when the spare storage medium is set in the first RAID, sets the logical storage area in the storage media, and when the expansion storage media are set in the storage apparatus, sets the expansion storage media in the second RAID, excludes the spare storage medium that is set in the first RAID, and moves the logical storage area that is set in the first RAID to the second RAID.

摘要翻译： 根据实施例，一种存储装置，包括：组合有第一RAID的多个存储介质，用于存储正在设置的数据的第一RAID的逻辑存储区域; 组成第二RAID的多个扩展存储介质; 与任何存储介质或扩展存储介质不同的备用存储介质; 以及配置控制单元，当所述备用存储介质被设置在所述第一RAID中时，设置所述存储介质中的逻辑存储区域，并且当在所述存储装置中设置所述扩展存储介质时，将所述扩展存储介质设置在所述第二RAID 不包括设置在第一RAID中的备用存储介质，并将设置在第一RAID中的逻辑存储区域移动到第二RAID。

公开(公告)号：US20110246717A1

公开(公告)日：2011-10-06

申请号：US13073409

申请日：2011-03-28

申请人： Kenji KOBAYASHI ,  Hideo TAKAHASHI ,  Norihide KUBOTA ,  Atsushi IGASHIRA ,  Hidejirou DAIKOKUYA ,  Kazuhiko IKEUCHI ,  Chikashi MAEDA

发明人： Kenji KOBAYASHI ,  Hideo TAKAHASHI ,  Norihide KUBOTA ,  Atsushi IGASHIRA ,  Hidejirou DAIKOKUYA ,  Kazuhiko IKEUCHI ,  Chikashi MAEDA

IPC分类号： G06F12/00

CPC分类号： G06F11/1096

摘要： A storage apparatus has a plurality of storage media including each storage area in which a stripe is set extending over the storage area of the plurality of storage media. An access unit that writes a format data into the storage area, wherein when the plurality of storage media are formatted, the access unit writes an unformatted-state identifier indicating incompletion of formatting into at least a portion of storage area to be included in the stripe, or when the storage area to be included in the stripe is accessed for writing new data, the access unit reads out existing data stored in the storage area included in the stripe to be accessed. And when the unformatted-state identifier is detected from the existing data that has been read out, the access unit writes the new data or the format data to be written by formatting into the storage area.

摘要翻译： 存储装置具有多个存储介质，其包括每个存储区域，在该存储区域中设置有条带，其延伸在多个存储介质的存储区域上。 一种将格式数据写入存储区域的存取单元，其中当格式化多个存储介质时，访问单元将表示格式化不完整的未格式化标识符写入要包括在条带中的存储区域的至少一部分中 或者当访问要包括在条带中的存储区域以写入新数据时，访问单元读出存储在要被访问的条带中的存储区域中的现有数据。 并且当从已经读出的现有数据检测到未格式化状态标识符时，访问单元将新数据或格式化的格式数据写入存储区域。

公开(公告)号：US20090113236A1

公开(公告)日：2009-04-30

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： G06F11/16 ,  G06F12/00

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。

公开(公告)号：US20120236427A1

公开(公告)日：2012-09-20

申请号：US13371503

申请日：2012-02-13

申请人： Kazuhiko IKEUCHI ,  Hidejirou DAIKOKUYA ,  Chikashi MAEDA ,  Norihide KUBOTA ,  Atsushi IGASHIRA ,  Kenji KOBAYASHI ,  Ryouta TSUKAHARA

发明人： Kazuhiko IKEUCHI ,  Hidejirou DAIKOKUYA ,  Chikashi MAEDA ,  Norihide KUBOTA ,  Atsushi IGASHIRA ,  Kenji KOBAYASHI ,  Ryouta TSUKAHARA

IPC分类号： G11B27/36

CPC分类号： G11B27/36 ,  G06F11/2082 ,  G06F11/2094 ,  G11B27/002

摘要： A storage apparatus includes a plurality of first storage mediums in which data is redundantly stored and a controller. The controller includes a formatting section which performs formatting in each of the plurality of first storage mediums, a detection section which detects a failure that has occurred in the plurality of first storage mediums, a control section which makes the formatting section stop the formatting at the time of the detection of the failure by the detection section and which rebuilds the data stored in the plurality of first storage mediums in which the failure has occurred in a second storage medium other than the plurality of first storage mediums, and a rebuild processing section which rebuilds the data stored in the plurality of first storage mediums in the second storage medium in accordance with instructions from the control section.

摘要翻译： 存储装置包括冗余存储数据的多个第一存储介质和控制器。 控制器包括格式化部分，其在多个第一存储介质中的每一个中执行格式化;检测部分，其检测在多个第一存储介质中发生的故障;控制部分，其使格式化部分停止在 检测部分检测到故障的时间，以及重建存储在其中发生故障的多个第一存储介质中的数据在除了多个第一存储介质之外的第二存储介质中的数据;以及重建处理部分， 根据来自控制部分的指令重建存储在第二存储介质中的多个第一存储介质中的数据。

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。

公开(公告)号：US20090313498A1

公开(公告)日：2009-12-17

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： G06F11/20

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。

公开(公告)号：US20090119453A1

公开(公告)日：2009-05-07

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： G06F12/00

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。

公开(公告)号：US20100241802A1

公开(公告)日：2010-09-23

申请号：US12696219

申请日：2010-01-29

申请人： Atsushi IGASHIRA ,  Masanori Ito ,  Yoshihito Konta ,  Norihide Kubota ,  Kenji Kobayashi

发明人： Atsushi IGASHIRA ,  Masanori Ito ,  Yoshihito Konta ,  Norihide Kubota ,  Kenji Kobayashi

IPC分类号： G06F12/08 ,  G06F12/00

CPC分类号： G06F12/0873 ,  G06F2212/262 ,  G06F2212/281

摘要： A storage unit includes a cache memory, a cache controller which accesses the cache memory, one or more disk units, a data receiving unit, a merge interpolation determination unit, a data readout unit, a write data generation unit and a data write unit. The data receiving unit receives, from the cache controller, unit readout data that includes update records updated by the cache controller and is unit of data read from the cache memory. The merge interpolation determination unit determines whether the received unit readout data is merge interpolated. The data readout unit reads, from the disk unit, data corresponding to the unit readout data when the unit readout data is determined to be merge interpolated. The write data generation unit generates data to be written to the disk unit by merge interpolating the unit readout data. The data write unit writes, to the disk unit, the generated data.

摘要翻译： 存储单元包括高速缓存存储器，访问高速缓冲存储器的高速缓存控制器，一个或多个盘单元，数据接收单元，合并插值确定单元，数据读出单元，写入数据生成单元和数据写入单元。 数据接收单元从高速缓存控制器接收包括由高速缓存控制器更新的更新记录的单元读出数据，并且是从高速缓冲存储器读取的数据单位。 合并插值确定单元确定接收单元读出数据是否合并内插。 当确定单元读出数据被合并内插时，数据读出单元从盘单元读取对应于单元读出数据的数据。 写数据生成单元通过合并内插单位读出数据来生成要写入到盘单元的数据。 数据写入单元向盘单元写入生成的数据。