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123 条记录 (耗时 0.026 秒)

    Magnetic disk drive
    32.
    发明授权
    Magnetic disk drive 失效
    磁盘驱动器

    公开(公告)号：US07295396B2

    公开(公告)日：2007-11-13

    申请号：US10877157

    申请日：2004-06-24

    申请人： Akio Shioya ,  Akira Kojima

    发明人： Akio Shioya ,  Akira Kojima

    IPC分类号： G11B5/596

    CPC分类号： G11B5/5547

    摘要： Embodiments of the present invention reduce noise and residual vibration during random access operation of a magnetic disk drive. The magnetic disk drive which executes each instruction from an upper device to move a magnetic head from a start track to an end track on a magnetic disk. In one embodiment, the magnetic disk comprises a processor configured, if a seek span from the start track to the end track, according to a seeking instruction from the upper device, is equal to a preset specific length, to store the seeking instruction for the specific length in memory, and to seek an alternative position from the start track for moving the magnetic head and then seek the end track specified in the stored seeking instruction from the alternative position for moving the magnetic head.

    摘要翻译： 本发明的实施例在磁盘驱动器的随机存取操作期间降低噪声和残余振动。 磁盘驱动器，其从上部装置执行每个指令，以将磁头从起始轨道移动到磁盘上的末端轨道。 在一个实施例中，磁盘包括处理器，如果从起始轨道到结束轨道的搜索跨度根据来自上部设备的寻求指令等于预设的特定长度，则将处理器配置为存储用于 并且从用于移动磁头的起始轨迹寻求替代位置，然后从用于移动磁头的替代位置寻找存储的寻道指令中指定的结束轨迹。

    Auxiliary storage device and read/write method
    33.
    发明申请
    Auxiliary storage device and read/write method 审中-公开
    辅助存储设备和读/写方式

    公开(公告)号：US20070220402A1

    公开(公告)日：2007-09-20

    申请号：US11652388

    申请日：2007-01-10

    申请人： Eiji Hagi ,  Takeshi Shikama ,  Takayuki Umemoto ,  Akira Kojima

    发明人： Eiji Hagi ,  Takeshi Shikama ,  Takayuki Umemoto ,  Akira Kojima

    IPC分类号： G11C29/00

    CPC分类号： G11B20/10527 ,  G11B2020/1062 ,  G11B2020/10675 ,  G11B2220/2516

    摘要： Embodiments in accordance with the present invention provide an auxiliary storage device that prevents performance degradation and collects data useful for buffer failure analysis. In one embodiment, a data set including user data and cyclic redundancy check (CRC) information is temporarily stored in a buffer. If a CRC error is detected in a data set that is read from the buffer during a data write or data read, the contents of the data set and the affected buffer address are recorded on a nonvolatile recording medium. Further, the buffer address is disabled. This makes it possible to store the data for reproducing a soft error that occurs in the buffer and prevent the performance of the auxiliary storage device from being degraded by a buffer error.

    摘要翻译： 根据本发明的实施例提供一种辅助存储装置，其防止性能下降并收集对缓冲器故障分析有用的数据。 在一个实施例中，包括用户数据和循环冗余校验（CRC）信息的数据集被临时存储在缓冲器中。 如果在数据写入或数据读取期间从缓冲器读取的数据集中检测到CRC错误，则数据集的内容和受影响的缓冲器地址被记录在非易失性记录介质上。 此外，缓冲区地址被禁用。 这使得可以存储用于再现缓冲器中出现的软错误的数据，并且防止辅助存储装置的性能被缓冲器错误降级。

    Recording apparatus
    36.
    发明授权
    Recording apparatus 失效
    记录装置

    公开(公告)号：US06282688B1

    公开(公告)日：2001-08-28

    申请号：US08825128

    申请日：1997-03-27

    申请人： Motoyasu Tsunoda ,  Syoichi Miyazawa ,  Soichi Isono ,  Akira Kojima ,  Noriyuki Karasawa ,  Fukashi Ohi ,  Takashi Oeda

    发明人： Motoyasu Tsunoda ,  Syoichi Miyazawa ,  Soichi Isono ,  Akira Kojima ,  Noriyuki Karasawa ,  Fukashi Ohi ,  Takashi Oeda

    IPC分类号： G11B2018

    CPC分类号： G06F11/1008 ,  G11B20/1833 ,  H03M13/00

    摘要： A recording apparatus includes a plurality of ECC units operating selectively and independently. A medium access unit reads data from a recording medium in a read mode, and writes data from a host device to the recording medium in a write mode. The data read out from the recording medium contains a reproduction data and a medium reproduction check symbol added to the reproduction data, and data written contains a recording data and a medium recording check symbol added to the recording data. The reproduction data or the recording data is stored in a buffer. In a read mode, the reproduction data from the medium access unit is transferred to the host device through the buffer and in the write mode, the recording data from the host device is transferred to the medium access unit through the buffer. Each ECC units detects any error of the data stored based on the check symbol added to the data stored in the buffer during the transfer operation, corrects the data stored when the error is detected, and generates a check symbol from the data transferred. The check symbol generated is transferred to a destination of transfer after the data to be transferred.

    摘要翻译： 记录装置包括选择性地且独立地操作的多个ECC单元。 介质访问单元以读取模式从记录介质读取数据，并以写入模式将数据从主机设备写入记录介质。 从记录介质读出的数据包含添加到再现数据的再现数据和介质再现检查符号，并且写入的数据包含添加到记录数据的记录数据和介质记录检查符号。 再现数据或记录数据被存储在缓冲器中。 在读取模式下，来自介质存取单元的再现数据通过缓冲器被传送到主机设备，并且在写入模式中，来自主机设备的记录数据通过缓冲器被传送到介质存取单元。 每个ECC单元基于在传送操作期间存储在缓冲器中的数据的校验符号检测存储的数据的任何错误，校正检测到错误时存储的数据，并从传送的数据生成检查符号。 生成的检查符号在要传送的数据之后传送到传送目的地。

    Disk array subsystem and data generation method therefor
    38.
    发明授权
    Disk array subsystem and data generation method therefor 失效
    磁盘阵列子系统及其数据生成方法

    公开(公告)号：US5875460A

    公开(公告)日：1999-02-23

    申请号：US975503

    申请日：1997-11-21

    申请人： Akira Kojima ,  Akihito Ogino ,  Soichi Isono

    发明人： Akira Kojima ,  Akihito Ogino ,  Soichi Isono

    IPC分类号： G06F12/16 ,  G06F3/06 ,  G06F11/10 ,  G11B20/10 ,  G11B20/18 ,  G06F13/00

    CPC分类号： G06F11/1076 ,  G11B20/1833 ,  G06F11/1012 ,  G06F2211/1054 ,  G11B20/10

    摘要： A disk drive has two channels of upper interfaces, and one channel is connected to a disk array controller, and the other channel is connected between a plurality of disk drives. A data disk drive reads the old data on the recording medium, calculates the exclusive OR of the old data and the corresponding data from the disk array controller, and transfers it to a parity disk as pseudo-parity data from the other channel. The parity disk drive reads the old parity data on the recording medium, calculates the exclusive OR of the old parity data and the pseudo-parity data, and writes it as new parity data.

    摘要翻译： 磁盘驱动器具有两个通道的上部接口，一个通道连接到磁盘阵列控制器，另一个通道连接在多个磁盘驱动器之间。 数据磁盘驱动器读取记录介质上的旧数据，计算来自磁盘阵列控制器的旧数据和相应数据的异或，并将其作为来自另一通道的伪奇偶校验数据传送到奇偶盘。 奇偶校验磁盘驱动器读取记录介质上的旧奇偶校验数据，计算旧奇偶校验数据和伪奇偶校验数据的异或，并将其写入新奇偶校验数据。