公开(公告)号：US06243824B1

公开(公告)日：2001-06-05

申请号：US08355210

申请日：1994-12-09

申请人： Hitoshi Kakuta ,  Yoshihisa Kamo ,  Hajime Aoi

发明人： Hitoshi Kakuta ,  Yoshihisa Kamo ,  Hajime Aoi

IPC分类号： H02H305

CPC分类号： G06F11/1076 ,  G06F3/0601 ,  G06F11/1466 ,  G06F2003/0692 ,  G06F2211/109

摘要： An array disk subsystem including a command selector for separating a signal from a host into a data item and a command, a data dividing unit for subdividing the data item, an ECC generator for producing an ECC for each of the obtained subdata items, a group of data disks for respectively storing thereon the subdata items and the ECCs, a command interpreting unit for interpreting the command, an I/O counter for counting I/O commands in the command, a backup processor for requesting a backup command based on count information of the I/O counter, and a backup unit responsive to the backup command for sequentially reading the subdata items and the ECCs from the data disks to record therein the subdata items and the ECCs.

摘要翻译： 一种阵列磁盘子系统，包括用于将信号从主机分离为数据项和命令的命令选择器，用于细分数据项的数据划分单元，用于为每个所获得的子数据项产生ECC的ECC产生器， 用于分别存储子数据项和ECC的数据磁盘，用于解释命令的命令解释单元，用于对命令中的I / O命令进行计数的I / O计数器，用于根据计数信息请求备份命令的备份处理器 的I / O计数器，以及响应于备份命令的备份单元，用于从数据盘顺序读取子数据项和ECC，以在其中记录子数据项和ECC。

公开(公告)号：US5572699A

公开(公告)日：1996-11-05

申请号：US32191

申请日：1993-03-15

申请人： Yoshihisa Kamo ,  Hajime Aoi ,  Hitoshi Kakuta ,  Yoshito Tsunoda ,  Hiromichi Fujisawa ,  Yosuke Seo ,  Yasuhide Ouchi

发明人： Yoshihisa Kamo ,  Hajime Aoi ,  Hitoshi Kakuta ,  Yoshito Tsunoda ,  Hiromichi Fujisawa ,  Yosuke Seo ,  Yasuhide Ouchi

IPC分类号： G06F3/06 ,  G06F12/00 ,  G06F12/04 ,  G06F17/30

CPC分类号： G06F3/0601 ,  G11B5/3133 ,  G06F2003/0697

摘要： A file system including an input/output unit for inputting data from and outputting data to an external system; a controller connected to the input/output unit for dividing the data into an optional number of parallel data; a management table for storing the number of divisions of the data; a head group for writing the divided parallel data into a storage medium at the same time; and a unit for reading the data from the storage medium while referring to information stored in management device.

摘要翻译： 一种文件系统，包括用于从外部系统输入数据并将数据输出到外部系统的输入/输出单元; 连接到输入/输出单元的控制器，用于将数据分成可选数量的并行数据; 用于存储数据的分割数的管理表; 用于同时将分割的并行数据写入存储介质的头组; 以及用于在参考存储在管理装置中的信息的同时从存储介质读取数据的单元。

公开(公告)号：US5325364A

公开(公告)日：1994-06-28

申请号：US412514

申请日：1989-09-26

申请人： Yasuhide Ouchi ,  Hajime Aoi ,  Yoshihisa Kamo ,  Yosuke Seo ,  Hitoshi Kakuta

发明人： Yasuhide Ouchi ,  Hajime Aoi ,  Yoshihisa Kamo ,  Yosuke Seo ,  Hitoshi Kakuta

IPC分类号： G06F11/10 ,  G06F11/14 ,  H03M13/00 ,  G06F11/00

CPC分类号： G06F11/1076 ,  G06F11/1008 ,  G06F11/1443

摘要： An error correction circuit which includes a specification circuit for specifying erroneous portions in a first data set reproduced from a recording medium, a register for storing the reproduced first data set including the erroneous portions thus specified and a reproducing circuit responsive to the reproduced first data set for reproducing again the first data set from the recording medium to obtain retry data, when there exist erroneous portions in the reproduced first data set stored in the register. The correction circuit also includes a data replace circuit, connected to receive the retry data, for replacing information at the specified erroneous portions in the reproduced first data set stored in the register by information at corresponding portions in the retry data.

摘要翻译： 一种误差校正电路，包括用于指定从记录介质再现的第一数据组中的错误部分的指定电路，用于存储包括如此指定的错误部分的再现的第一数据组的寄存器和响应于再现的第一数据集的再现电路 当存储在寄存器中的再现的第一数据组中存在错误部分时，再次从记录介质再现第一数据组以获得重试数据。 校正电路还包括连接以接收重试数据的数据替换电路，用于通过重试数据中的相应部分处的信息替换存储在寄存器中的再现的第一数据集中的指定错误部分处的信息。

公开(公告)号：US5402428A

公开(公告)日：1995-03-28

申请号：US630210

申请日：1990-12-19

申请人： Hitoshi Kakuta ,  Yoshihisa Kamo ,  Hajime Aoi

发明人： Hitoshi Kakuta ,  Yoshihisa Kamo ,  Hajime Aoi

IPC分类号： G06F3/06 ,  G06F11/10 ,  G06F11/14 ,  G06F11/00 ,  G06F1/00 ,  G06F13/00

CPC分类号： G06F11/1076 ,  G06F11/1466 ,  G06F3/0601 ,  G06F2003/0692 ,  G06F2211/109

摘要： An array disk subsystem including a command selector for separating a signal from a host into a data item and a command, a data dividing unit for subdividing the data item, an ECC generator for producing an ECC for each of the obtained subdata items, a group of data disks for respectively storing thereon the subdata items and the ECCs, a command interpreting unit for interpreting the command, an I/O counter for counting I/O commands in the command, a backup processor for requesting a backup command based on count information of the I/O counter, and a backup unit responsive to the backup command for sequentially reading the subdata items and the ECCs from the data disks to record therein the subdata items and the ECCs.

摘要翻译： 一种阵列磁盘子系统，包括用于将信号从主机分离为数据项和命令的命令选择器，用于细分数据项的数据划分单元，用于为每个所获得的子数据项产生ECC的ECC产生器， 用于分别存储子数据项和ECC的数据磁盘，用于解释命令的命令解释单元，用于对命令中的I / O命令进行计数的I / O计数器，用于根据计数信息请求备份命令的备份处理器 的I / O计数器，以及响应于备份命令的备份单元，用于从数据盘顺序读取子数据项和ECC，以在其中记录子数据项和ECC。

公开(公告)号：US6161194A

公开(公告)日：2000-12-12

申请号：US162444

申请日：1998-09-29

申请人： Atsushi Tanaka ,  Yoshihisa Kamo ,  Hitoshi Kakuta

发明人： Atsushi Tanaka ,  Yoshihisa Kamo ,  Hitoshi Kakuta

IPC分类号： G06F3/06 ,  G06F11/00 ,  G06F11/10 ,  G11B20/18 ,  G11C29/00

CPC分类号： G11C29/74 ,  G06F11/1084 ,  G06F11/1092

摘要： A storage data reconstruction system including a plurality of storage units for storing therein divided data, the plural independent storage units forming a set; units for storing therein ECC data corresponding to the divided data; a spare storage unit for storing therein reconstructed data; an I/O-reconstruction control circuit; a timer; a data reconstructing table for a storage unit which has failed and a circuit for reconstructing faulty data. When a failure occurs in any of the storage units, the failure is detected by an error check, a state of the failure is discriminated, a preferred processing suitable for the state of the failure is selected from a processing of a normal access or read/write, and a data reconstruction processing, and the selected processing is carried out, or the frequency of the processing of the normal access or read/write and the data reconstruction processing, or the ratio of the amount of the data reconstruction processing within a unit time, is set. The time taken to reconstruct the faulty data does not exceed a fixed period of time.

摘要翻译： 一种存储数据重建系统，包括：多个存储单元，用于在其中存储划分的数据，所述多个独立存储单元形成一组; 用于存储与分割数据相对应的ECC数据的单元; 用于存储重建数据的备用存储单元; I / O重构控制电路; 一个计时器 用于存储单元的故障的数据重建表和用于重建故障数据的电路。 当在任何存储单元中发生故障时，通过错误检查来检测到故障，判别出故障状态，从正常访问或读/写操作的处理中选择适合于故障状态的优选处理， 写入和数据重建处理，并且执行所选择的处理，或正常访问或读/写和数据重构处理的处理频率，或单位内的数据重构处理量的比率 时间，设置。 重建故障数据所用的时间不超过固定的时间段。

公开(公告)号：US5008761A

公开(公告)日：1991-04-16

申请号：US489322

申请日：1990-03-05

申请人： Nobumasa Nishiyama ,  Makoto Saito ,  Yasuhide Ouchi ,  Yasuhiro Katoh ,  Yoshihisa Kamo ,  Makoto Koizumi ,  Hajime Aoi ,  Naoki Sato ,  Reijiro Tsuchiya

发明人： Nobumasa Nishiyama ,  Makoto Saito ,  Yasuhide Ouchi ,  Yasuhiro Katoh ,  Yoshihisa Kamo ,  Makoto Koizumi ,  Hajime Aoi ,  Naoki Sato ,  Reijiro Tsuchiya

IPC分类号： G11B5/035 ,  G11B20/10 ,  G11B20/18

CPC分类号： G11B20/10212 ,  G11B20/182 ,  G11B5/035

摘要： A readout circuit in magnetic recording device is disclosed, in which a test data signal for detecting an error in the characteristics of an automatic equalizer is recorded in a predetermined position of each track of a magnetic recording medium. In readout mode, a test data signal for a selected track is read out first, and this signal is compared with a reference signal dependent on the system conditions to determine an error from the reference signal. The optimum equalization coefficient is determined to eliminate this error from the reference signal and set in the equalizer. The data is readout under the optimum equalization characteristics thus set.

公开(公告)号：US20060010343A1

公开(公告)日：2006-01-12

申请号：US11218610

申请日：2005-09-06

申请人： Atsushi Tanaka ,  Yoshihisa Kamo ,  Hitoshi Kakuta

发明人： Atsushi Tanaka ,  Yoshihisa Kamo ,  Hitoshi Kakuta

IPC分类号： G06F11/00

CPC分类号： G11C29/74 ,  G06F11/1084 ,  G06F11/1092

摘要： A data storage system connectable to a host unit which issues data read/write requests to the data storage system, and which includes a plurality of disc units, and a controller connected to the disc units. A fault can occur in any of the disc units. The disc units store data in a plurality of data groups and error correcting data corresponding to each of the data groups. The controller, operable in different modes, performs processing of reconstructing data stored in any of the disc units in which a fault has occurred based on all other data belonging to any of the data groups to which the data to be reconstructed belongs and error correcting data corresponding to any of the data groups to which the data to be reconstructed belongs, and performs processing of data read/write requests from the host unit.

摘要翻译： 可连接到主机单元的数据存储系统，其向数据存储系统发出数据读/写请求，并且包括多个盘单元，以及连接到盘单元的控制器。 任何碟片单元都可能发生故障。 盘单元将数据存储在多个数据组中，并且对应于每个数据组的纠错数据。 控制器以不同的模式操作，根据属于重构数据所属数据组的所有其他数据所属的所有其它数据，以及纠错数据，执行重构存储在发生故障的任何一个盘单元中的数据的处理 对应于要重构的数据所属的任何数据组，并且执行来自主机单元的数据读/写请求的处理。

公开(公告)号：US6131142A

公开(公告)日：2000-10-10

申请号：US357372

申请日：1999-07-20

申请人： Yoshihisa Kamo ,  Hitoshi Kakuta ,  Atsushi Tanaka ,  Yosuke Seo

发明人： Yoshihisa Kamo ,  Hitoshi Kakuta ,  Atsushi Tanaka ,  Yosuke Seo

IPC分类号： G06F1/26 ,  G06F1/30 ,  G06F1/32 ,  G06F11/00 ,  G06F12/00

CPC分类号： G06F1/266 ,  G11B19/209

摘要： With respect to the disk drives provided power from a single power source in a disk drive system, start up power is first supplied to a first start-up group of the disks, preferably comprising all of the master disks, with the size of the group being selected so that the required current does not exceed the capacity of the power source. When the disk drives of the first group have substantially reached steady state, start-up is conducted with respect to a second start-up group of the disk drives so that the current required during start-up for the second group and the current required for steady state drive of the first start-up group does not exceed the capacity of the power source. With respect to each start-up group, the number of disk drives is the maximum integer value and decreases or remains the same with respect to subsequent start-up groups. When simultaneously transferring subdivided data in parallel to all of the disk drives of a parity group, respectively, seek operations in such a system are prevented from occurring simultaneously by offsetting the indices on the disks, by varying the seek operation start timing or by varying the head addresses for the start of reading and writing, all within one revolution, but the seek operations are ended at the same time, to reduce peak current requirements of the power source.

公开(公告)号：US6000039A

公开(公告)日：1999-12-07

申请号：US895986

申请日：1997-07-17

申请人： Atsushi Tanaka ,  Yoshihisa Kamo ,  Hitoshi Kakuta

发明人： Atsushi Tanaka ,  Yoshihisa Kamo ,  Hitoshi Kakuta

IPC分类号： G06F3/06 ,  G06F11/00 ,  G06F11/10 ,  G11B20/18 ,  G11C29/00 ,  G06F11/30

CPC分类号： G11C29/74 ,  G06F11/1084 ,  G06F11/1092

摘要： A storage data reconstruction system including a plurality of storage units for storing therein divided data, the plural independent storage units forming a set; units for storing therein ECC data corresponding to the divided data; a spare storage unit for storing therein reconstructed data; an I/O-reconstruction control circuit; a timer; a data reconstructing table for a storage unit which is failed; and a circuit for reconstructing faulty data. When a failure occurs in any of the storage units, the failure is detected by an error check, a state of the failure is discriminated, a preferred processing suitable for the state of the failure is selected from a processing of a normal access or read/write and a data reconstruction processing, and the selected processing is carried out, or the frequency of the processing of the normal access or read/write and the data reconstruction processing, or the ratio of the amount of the data reconstruction processing within a unit time, is set. The time taken to reconstruct the faulty data does not exceed a fixed period of time.

摘要翻译： 一种存储数据重建系统，包括：多个存储单元，用于在其中存储划分的数据，所述多个独立存储单元形成一组; 用于存储与分割数据相对应的ECC数据的单元; 用于存储重建数据的备用存储单元; I / O重构控制电路; 一个计时器 用于存储单元的数据重建表失败; 以及用于重构故障数据的电路。 当在任何存储单元中发生故障时，通过错误检查来检测到故障，判别出故障状态，从正常访问或读/写操作的处理中选择适合于故障状态的优选处理， 写入和数据重建处理，并且执行所选择的处理，或正常访问或读/写和数据重建处理的处理频率，或单位时间内的数据重建处理量的比率 ，设置。 重建故障数据所用的时间不超过固定的时间段。

公开(公告)号：US5673412A

公开(公告)日：1997-09-30

申请号：US472460

申请日：1995-06-07

申请人： Yoshihisa Kamo ,  Hitoshi Kakuta ,  Atsushi Tanaka ,  Yosuke Seo

发明人： Yoshihisa Kamo ,  Hitoshi Kakuta ,  Atsushi Tanaka ,  Yosuke Seo

IPC分类号： G06F1/26 ,  G06F1/30 ,  G06F1/32 ,  G06F11/00 ,  G06F12/00

CPC分类号： G06F1/266 ,  G11B19/209

摘要： With respect to the disk drives provided power from a single power source in a disk drive system, start up power is first supplied to a first start-up group of the disks, preferably comprising all of the master disks, with the size of the group being selected so that the required current does not exceed the capacity of the power source. When the disk drives of the first group have substantially reached steady state, start-up is conducted with respect to a second start-up group of the disk drives so that the current required during start-up for the second group and the current required for steady state drive of the first start-up group does not exceed the capacity of the power source. With respect to each start-up group, the number of disk drives is the maximum integer value and decreases or remains the same with respect to subsequent start-up groups. When simultaneously transferring subdivided data in parallel to all of the disk drives of a parity group, respectively, seek operations in such a system are prevented from occurring simultaneously by offsetting the indices on the disks, by varying the seek operation start timing or by varying the head addresses for the start of reading and writing, all within one revolution, but the seek operations are ended at the same time, to reduce peak current requirements of the power source.

摘要翻译： 对于提供来自磁盘驱动器系统中的单个电源的电力的磁盘驱动器，首先将启动电力提供给具有组的大小的优选地包括所有主盘的磁盘的第一启动组 被选择使得所需电流不超过电源的容量。 当第一组的磁盘驱动器已经基本上达到稳定状态时，相对于磁盘驱动器的第二启动组进行启动，使得第二组启动期间所需的电流以及第二组所需的电流 第一启动组的稳态驱动不超过电源的容量。 对于每个启动组，磁盘驱动器的数量是最大整数值，并且相对于后续的启动组而言减少或保持不变。 当分别同时将分割的数据传输到奇偶校验组的所有磁盘驱动器时，通过改变寻道操作开始定时或通过改变寻道操作开始时间来防止这种系统中的寻找操作同时发生， 开始阅读和写入的头地址全部在一轮之内，但寻道操作同时结束，以减少电源的峰值电流要求。