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41.发明授权Data storage system, data storage control device, and write error diagnosis method for disks thereof 有权数据存储系统，数据存储控制装置及其盘的写入错误诊断方法公开(公告)号：US07475279B2
公开(公告)日：2009-01-06
申请号：US11376183
申请日：2006-03-16
申请人： Hideo Takahashi , Norihide Kubota , Hiroaki Ochi , Yoshihito Konta , Yasutake Sato , Tsukasa Makino , Mikio Ito , Hidejirou Daikokuya , Kazuhiko Ikeuchi , Shinya Mochizuki
发明人： Hideo Takahashi , Norihide Kubota , Hiroaki Ochi , Yoshihito Konta , Yasutake Sato , Tsukasa Makino , Mikio Ito , Hidejirou Daikokuya , Kazuhiko Ikeuchi , Shinya Mochizuki
IPC分类号： G06F11/00
CPC分类号： G06F11/0727 , G06F11/0763 , G06F2211/104
摘要： A storage system has a plurality of disk storage devices and a controller for controlling the plurality of disk storage devices, and diagnosis of a write miss to a disk of the disk storage device. The controller for controlling the plurality of disk storage devices attaches an ID to write data, and after write access to the disk drive, the controller reads the write data from the disk drive, and compares the ID of the read data and the attached ID. The controller updates the ID for each write command. Therefore the old write data and the new write data can be identified, accurate diagnosis is possible, and the failure of an individual disk drive can be detected immediately.
摘要翻译： 存储系统具有多个盘存储装置和用于控制多个盘存储装置的控制器，以及对盘存储装置的盘的写入错误的诊断。 用于控制多个盘存储装置的控制器附加写入数据的ID，并且在对磁盘驱动器的写入访问之后，控制器从盘驱动器读取写入数据，并且比较读取的数据的ID和附加的ID。 控制器更新每个写命令的ID。 因此，可以识别旧的写入数据和新的写入数据，可以进行准确的诊断，并且可以立即检测到单个磁盘驱动器的故障。
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42.发明申请Write omission detector, write omission detecting method, and computer product 有权写遗漏检测器，省略检测方法和计算机产品公开(公告)号：US20080151407A1
公开(公告)日：2008-06-26
申请号：US11902772
申请日：2007-09-25
申请人： Mikio Ito , Hidejirou Daikokuya , Kazuhiko Ikeuchi , Hideo Takahashi , Yoshihito Konta , Norihide Kubota
发明人： Mikio Ito , Hidejirou Daikokuya , Kazuhiko Ikeuchi , Hideo Takahashi , Yoshihito Konta , Norihide Kubota
IPC分类号： G11B5/09
CPC分类号： G11B5/09 , G06F11/1612 , G11B20/1803 , G11B2220/415
摘要： A device adaptor that controls a disk, wherein a storage area is divided into a plurality of blocks, detects a block that includes a read error. Next, the device adaptor detects a write omission in blocks that are within a predetermined range from the block that includes the read error. To be specific, the device adaptor reads data from the blocks that are in the vicinity of the block that includes the unrecovered read error in a suspect disk. Next, the device adaptor reads from a redundant disk, data of a block that corresponds to the block that includes the unrecovered read error (data of block “B” in an example shown in FIG. 1) and compares the read data to the data read from the suspect disk to detect the write omission.
摘要翻译： 一种控制盘的设备适配器，其中存储区被分成多个块，检测包括读错误的块。 接下来，设备适配器检测到在来自包括读取错误的块的预定范围内的块中的写入省略。 具体来说，设备适配器从可疑磁盘中包含未恢复的读取错误的块附近的块读取数据。 接下来，设备适配器从冗余磁盘读取与包含未恢复的读取错误的块相对应的块的数据（在图1所示的示例中的块“B”的数据）），并将读取的数据与数据 从可疑磁盘读取以检测写入的遗漏。
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43.发明申请Data storage system, data storage control device, and failure location diagnosis method thereof 审中-公开数据存储系统，数据存储控制装置及故障定位诊断方法公开(公告)号：US20070076321A1
公开(公告)日：2007-04-05
申请号：US11401244
申请日：2006-04-11
申请人： Hideo Takahashi , Norihide Kubota , Hiroaki Ochi , Yoshihito Konta , Yasutake Sato , Tsukasa Makino , Mikio Ito , Hidejirou Daikokuya , Kazuhiko Ikeuchi , Shinya Mochizuki
发明人： Hideo Takahashi , Norihide Kubota , Hiroaki Ochi , Yoshihito Konta , Yasutake Sato , Tsukasa Makino , Mikio Ito , Hidejirou Daikokuya , Kazuhiko Ikeuchi , Shinya Mochizuki
IPC分类号： G11B17/02
CPC分类号： G06F11/079 , G06F3/0617 , G06F3/0689 , G06F11/0727 , H04L67/1097 , H04L69/40
摘要： A storage system has a control module for controlling a plurality of disk storage devices via a transmission path so as to discern the abnormalities of the plurality of disk devices and those of the transmission paths. When a control module for controlling the plurality of disk storage devices detects an error when the disk storage devices are accessed, the control module dummy-accesses the plurality of the disk storage devices on the transmission path, and specifies the suspected failure location based on the result. Therefore it can be discerned whether the suspected failure location is in the transmission path or the disk drive.
摘要翻译： 存储系统具有用于经由传输路径控制多个盘存储装置的控制模块，以便辨别多个盘装置和传输路径的异常。 当用于控制多个磁盘存储装置的控制模块在访问磁盘存储装置时检测到错误时，控制模块对传输路径上的多个磁盘存储装置进行虚拟访问，并基于 结果。 因此，可以看出怀疑的故障位置是否在传输路径或磁盘驱动器中。
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公开(公告)号：US20060282616A1
公开(公告)日：2006-12-14
申请号：US11214871
申请日：2005-08-31
申请人： Yoshihito Konta , Hideo Takahashi , Hiroaki Ochi , Yasutake Sato , Tsukasa Makino , Norihide Kubota , Mikio Ito , Hidejirou Daikokuya , Kazuhiko Ikeuchi , Shinya Mochizuki
发明人： Yoshihito Konta , Hideo Takahashi , Hiroaki Ochi , Yasutake Sato , Tsukasa Makino , Norihide Kubota , Mikio Ito , Hidejirou Daikokuya , Kazuhiko Ikeuchi , Shinya Mochizuki
IPC分类号： G06F12/16
CPC分类号： G06F3/0659 , G06F3/0611 , G06F3/0653 , G06F3/0689 , G06F11/2087
摘要： A magnetic disk apparatus capable of effectively achieving speedup of the response to a read request, a control method and control program therefore are provided. In a control of a magnetic disk apparatus having a RAID configuration in which the same data is written on two disks, a given algorism is selected from a plurality of different algorisms with respect to the data stored in the disks, read commands are issued to the data stored in the two disks, respectively, according to the selected algorithm and the data that has been read first by the read commands that has been issued to the two disks in a read command issuance step is adopted as read data.
摘要翻译： 因此，能够有效地实现对读取请求的响应加速的磁盘装置，控制方法和控制程序。 在具有将相同数据写入两个磁盘的RAID配置的磁盘设备的控制中，从存储在磁盘中的数据的多个不同算法中选择给定的算法，读取命令被发布到 采用根据所选择的算法分别存储在两个磁盘中的数据以及在读取命令发布步骤中已经被发给两个磁盘的读取命令首先读取的数据被用作读取数据。
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公开(公告)号：US20100241802A1
公开(公告)日：2010-09-23
申请号：US12696219
申请日：2010-01-29
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。
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公开(公告)号：US20090235114A1
公开(公告)日：2009-09-17
申请号：US12369389
申请日：2009-02-11
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。
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公开(公告)号：US08225136B2
公开(公告)日：2012-07-17
申请号：US12480851
申请日：2009-06-09
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。
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公开(公告)号：US08015435B2
公开(公告)日：2011-09-06
申请号：US12369389
申请日：2009-02-11
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。
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公开(公告)号：US07949895B2
公开(公告)日：2011-05-24
申请号：US12259664
申请日：2008-10-28
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。
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公开(公告)号：US20080155193A1
公开(公告)日：2008-06-26
申请号：US11864091
申请日：2007-09-28
申请人： Hidejiro DAIKOKUYA , Mikio Ito , Kazuhiko Ikeuchi , Shinya Mochizuki , Hideo Takahashi , Yoshihito Konta , Norihide Kubota
发明人： Hidejiro DAIKOKUYA , Mikio Ito , Kazuhiko Ikeuchi , Shinya Mochizuki , Hideo Takahashi , Yoshihito Konta , Norihide Kubota
IPC分类号： G06F12/00
CPC分类号： G06F12/0866 , G06F11/1076 , G06F2211/1057 , G06F2212/261
摘要： To provide a staging method capable of detecting an error in data read from a disk device during staging, a disk array control apparatus 100 includes a data read unit 101 for reading data, a first reference data generation unit 102 for generating first reference data from the read data, a second reference data generation unit 103 for similarly generating second reference data, a true-false determination unit 104 for determining whether or not the data read by the data read unit 101 is correct, and a data write unit 105 for writing data to cache memory.
摘要翻译： 为了提供能够在分段期间检测从磁盘装置读取的数据中的错误的分段方法，磁盘阵列控制装置100包括用于读取数据的数据读取单元101，用于从第一参考数据生成单元102生成第一参考数据的第一参考数据生成单元102 读取数据，用于类似地产生第二参考数据的第二参考数据生成单元103，用于确定数据读取单元101读取的数据是否正确的真假确定单元104以及用于写入数据的数据写入单元105 缓存内存
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