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    Array disk subsystem
    3.
    发明授权
    Array disk subsystem 失效
    阵列磁盘子系统

    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。

    Data reconstruction method and system wherein timing of data reconstruction is controlled in accordance with conditions when a failure occurs
    4.
    发明授权
    Data reconstruction method and system wherein timing of data reconstruction is controlled in accordance with conditions when a failure occurs 失效
    数据重建方法和系统，其中根据故障发生时的状况来控制数据重建的定时

    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。

    Current driving circuit
    6.
    发明授权
    Current driving circuit 失效
    电流驱动电路

    公开(公告)号：US4600965A

    公开(公告)日：1986-07-15

    申请号：US580711

    申请日：1984-02-16

    申请人： Naoki Sato ,  Yoshihisa Kamo ,  Yasuhiro Katoh ,  Kazuhiro Momata ,  Shinichi Arai

    发明人： Naoki Sato ,  Yoshihisa Kamo ,  Yasuhiro Katoh ,  Kazuhiro Momata ,  Shinichi Arai

    IPC分类号： G11B5/02 ,  G11B5/09 ,  H03K17/60 ,  H03K17/66 ,  G05F3/22 ,  H01H47/32

    CPC分类号： H03K17/603 ,  G11B5/02 ,  H03K17/667

    摘要： In a current driving circuit which supplies a two-terminal load with current to be inverted in accordance with input information, a current driving circuit according to the present invention comprises a load whose one-side terminal has its potential fixed, circuitry to supply a non-fixed side terminal of the load with a direct current, and circuitry to supply the non-fixed side terminal with a current having a magnitude double that of the direct current and a polarity opposite to that of the direct current, while switching it in accordance with input information. Owing to such construction, the number of terminals to be led out from the loads can be reduced, and a load current can be inverted at high speed. In addition, reliability can be enhanced because the assembling process is simplified.

    摘要翻译： 在根据输入信息向两端负载提供要反相的电流的电流驱动电路中，根据本发明的电流驱动电路包括其一侧端子具有其电位固定的电路， 具有直流电的负载的固定侧端子，以及用于向非固定侧端子提供具有与直流电流相反的直流电压和极性两倍的电流的电流的电路，同时根据 与输入信息。 由于这样的结构，可以减少从负载引出的端子的数量，并且可以高速地反转负载电流。 此外，由于组装过程简化，可以提高可靠性。

    Disk system and power-on sequence for the same
    7.
    发明授权
    Disk system and power-on sequence for the same 失效
    磁盘系统和上电顺序相同

    公开(公告)号：US07242656B2

    公开(公告)日：2007-07-10

    申请号：US10617681

    申请日：2003-07-14

    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： G11B7/00

    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送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。

    Storage unit subsystem
    8.
    发明申请
    Storage unit subsystem 失效

    公开(公告)号：US20050050267A1

    公开(公告)日：2005-03-03

    申请号：US10945882

    申请日：2004-09-22

    申请人： Akira Yamamoto ,  Hiroyuki Kitajima ,  Kouji Arai ,  Yoshihisa Kamo

    发明人： Akira Yamamoto ,  Hiroyuki Kitajima ,  Kouji Arai ,  Yoshihisa Kamo

    IPC分类号： G06F11/10 ,  G06F12/16

    CPC分类号： G06F11/1076 ,  G06F2211/1009

    摘要： When receiving a write request from a processor, a control unit checks the condition of existence (or the presence/absence) in a cache for information necessary for generation of an updated value of a parity record, receives write data and reports the completion of the write request to the processor. In asynchronism with the write request from the processor, the control unit performs a load process for that information among the information necessary for generation of the updated value of the parity record which may be prepared in asynchronism with the write request from the processor and a write after process for the updated value of the parity record.

    Disk system and power-on sequence for the same
    9.
    发明授权
    Disk system and power-on sequence for the same 失效

    公开(公告)号：US06625690B2

    公开(公告)日：2003-09-23

    申请号：US10122301

    申请日：2002-04-16

    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： 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.

    Method and apparatus for implementing redundancy on data stored in a disk array subsystem based on use frequency or importance of the data
    10.
    发明授权
    Method and apparatus for implementing redundancy on data stored in a disk array subsystem based on use frequency or importance of the data 有权
    基于数据的使用频率或重要性来实现存储在磁盘阵列子系统中的数据的冗余的方法和装置

    公开(公告)号：US06611897B2

    公开(公告)日：2003-08-26

    申请号：US10123404

    申请日：2002-04-17

    申请人： Tsunetaka Komachiya ,  Yoshihisa Kamo ,  Akira Yamamoto

    发明人： Tsunetaka Komachiya ,  Yoshihisa Kamo ,  Akira Yamamoto

    IPC分类号： G06F1300

    CPC分类号： G06F3/065 ,  G06F3/0613 ,  G06F3/0632 ,  G06F3/0689 ,  G06F2211/1004 ,  G06F2211/1023

    摘要： In a disk array subsystem capable of changing the data redundancy method between a duplicating method and a parity method, the load of data transfer occurring at the time of changing the data redundant method is reduced. In the disk array subsystem, since one data of the duplicated data are used for data for the parity data area, the one data secures an area for storing parity prepared from the data. With the arrangement, it is not necessary to transfer the data when the data redundancy method is changed from the duplicating to the parity method and the data transfer load is mitigated.

    摘要翻译： 在能够在复制方法和奇偶校验方法之间改变数据冗余方法的磁盘阵列子系统中，减少了在改变数据冗余方法时发生的数据传送的负担。 在磁盘阵列子系统中，由于复制数据的一个数据用于奇偶校验数据区域的数据，所以一个数据保护用于存储从该数据准备的奇偶校验的区域。 通过这种安排，当数据冗余方法从复制改变为奇偶校验方法并且减轻数据传输负载时，不需要传送数据。