公开(公告)号：US5941993A

公开(公告)日：1999-08-24

申请号：US895886

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

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 a reconstructed data; an I/O-reconstruction control circuit; a timer; a data reconstructing table for 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; 备用存储单元，用于在其中存储重构的数据; I / O重构控制电路; 一个计时器 存储单元的数据重建表已失败; 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：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：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：US5495572A

公开(公告)日：1996-02-27

申请号：US859850

申请日：1992-03-30

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 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，用于在其中存储分配的数据单元，用于存储与分割数据相对应的ECC数据; 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已失败; 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：US06625748B1

公开(公告)日：2003-09-23

申请号：US09712171

申请日：2000-11-15

申请人： Atsushi Tanaka ,  Yoshihisa Kamo ,  Hitoshi Kakuta

发明人： Atsushi Tanaka ,  Yoshihisa Kamo ,  Hitoshi Kakuta

IPC分类号： G06F1108

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 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. The controller is operable in a first mode wherein the processing of reconstructing data has priority over the processing of data read/write requests, and a second mode wherein the processing of data read/write requests has priority over the processing of reconstructing data. The controller may determine whether to operate in the first mode or the second mode based on an urgency of data reconstruction, or may determine whether to operate in the first mode or the second mode in order to complete data reconstruction within a fixed time.

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。 控制器根据属于要重构的数据的任何一个数据组的所有其他数据以及对应于任何数据的纠错数据执行重构存储在发生了故障的任何一个盘单元中的数据的处理 要重建的数据所属的组，并且执行来自主机单元的数据读/写请求的处理。 控制器可以在第一模式中操作，其中重构数据的处理优先于数据读/写请求的处理，而第二模式，其中数据读/写请求的处理优先于重构数据的处理。 控制器可以基于数据重建的紧迫性来确定是在第一模式还是第二模式中操作，或者可以确定是否在第一模式或第二模式中操作，以便在固定时间内完成数据重建。

公开(公告)号：US06397294B2

公开(公告)日：2002-05-28

申请号：US09788392

申请日：2001-02-21

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

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

IPC分类号： G06F1200

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。

公开(公告)号：US5889938A

公开(公告)日：1999-03-30

申请号：US534841

申请日：1995-09-27

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 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 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已失败; 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，并且设置正常访问或读/写和数据重建处理的处理的数据重建频率，或单位时间内的数据重建处理量的比率。 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：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：US5463765A

公开(公告)日：1995-10-31

申请号：US34389

申请日：1993-03-18

申请人： Hitoshi Kakuta ,  Yoshihisa Kamo ,  Yoshifumi Takamoto

发明人： Hitoshi Kakuta ,  Yoshihisa Kamo ,  Yoshifumi Takamoto

IPC分类号： G06F11/10 ,  G11B20/18 ,  G11C29/00 ,  G06F12/00

CPC分类号： G11C29/70 ,  G06F11/1008 ,  G06F11/1076 ,  G11B20/1833 ,  G11B20/1883 ,  G11B2220/20

摘要： In a disk array system for RAID (level 5) to improve a process performance by dispersing data, the overhead during data writing operation is reduced. Even when write data are used to rewrite data #1 to data #4, which have already been written at address SADR 2, SADR 2, SADR1 and SADR 3 within drives as data belonging to mutually different parity groups, these data are considered as new write data, and then these new write data are written in parallel into, for instance, an empty region in the drive at the address SADR 4. The updated old data or the updated old parity data are not read out. The invalidation flags for the updated old data are registered into an address conversion table. The subsequent data readout operation is carried out from a newly written region. When all of data within the original parity group are invalidated, the region holding this group is used as an empty region. The valid data within the parity group, which have been partially invalidated, are replaced at a proper timing. In other words, these valid data are acquired to produce a new parity data group which will then be stored into the empty region. In the above operation, it is assumed that a length of data transferred from a host unit is constant, and data belonging to one parity data group has this constant length.

摘要翻译： 在用于通过分散数据来提高处理性能的用于RAID（5级）的磁盘阵列系统中，减少了数据写入操作期间的开销。 即使使用写入数据将数据＃1重写到已经写入驱动器内的地址SADR 2，SADR 2，SADR1和SADR 3的数据＃4，作为属于相互不同的奇偶校验组的数据，这些数据被认为是新的 写入数据，然后将这些新的写入数据并行写入到例如地址SADR4的驱动器中的空白区域。更新的旧数据或更新的旧奇偶校验数据不被读出。 更新的旧数据的无效标志被注册到地址转换表中。 随后的数据读出操作是从新写入的区域进行的。 当原始奇偶校验组中的所有数据无效时，保持该组的区域被用作空白区域。 奇偶校验组中的有效数据已被部分无效，在适当的时机被替换。 换句话说，获取这些有效数据以产生新的奇偶校验数据组，然后将其存储到空区域中。 在上述操作中，假设从主机单元传送的数据的长度是恒定的，属于一个奇偶校验数据组的数据具有这个恒定长度。

公开(公告)号：US5457703A

公开(公告)日：1995-10-10

申请号：US793110

申请日：1991-11-18

申请人： Hitoshi Kakuta ,  Yoshihisa Kamo

发明人： Hitoshi Kakuta ,  Yoshihisa Kamo

IPC分类号： G06F11/10 ,  G11B20/10 ,  G11B20/12 ,  G11B20/18 ,  G06F11/18

CPC分类号： G06F11/1076 ,  G06F11/1008 ,  G11B20/10 ,  G11B20/1258 ,  G11B20/1833

摘要： An array disk system includes a plurality of disk drives having disk-like recording media each having a surface divided into a plurality of zones and the data capacity per track is varied in each zone. The plurality of disk drives are divided into a plurality of groups. Reading/writing heads of the disk drives are positioned to access tracks having different zones on the disks in each zone on the basis of a cylinder address designated by a host system. Data transferred from the host system is divided in accordance with a ratio of data capacities of the tracks to be accessed and is recorded in each of the disk drives simultaneously.

摘要翻译： 阵列盘系统包括具有盘形记录介质的多个盘驱动器，每个盘状记录介质具有被划分成多个区域的表面，并且每个轨道的数据容量在每个区域中变化。 多个磁盘驱动器被分成多个组。 基于由主机系统指定的气缸地址，磁盘驱动器的读/写头被定位成在每个区域的磁盘上访问具有不同区域的磁道。 根据要访问的磁道的数据容量的比率，将从主机系统传送的数据分割并同时记录在每个磁盘驱动器中。