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    • 10. 发明授权
    • Disk device and data reassignment method
    • 磁盘设备和数据重新分配方法
    • US06189110B1
    • 2001-02-13
    • US08958774
    • 1997-10-27
    • Takahiro SaitohAkira KibashiKenji OkadaHideki Ohzeki
    • Takahiro SaitohAkira KibashiKenji OkadaHideki Ohzeki
    • G06F1100
    • G11B20/1883G11B2020/10916G11B2220/20
    • A disk device and a method are described for reassigning data areas (e.g. sectors) which minimize the reduction in the data transfer rate when alternate data areas are used to replace defective areas. The disk device uses a plurality of data zones with spare areas allocated in each data zone. An alternate area is allocated (a) in the spare area within the data zone where the error occurs and (b) at an angular position offset more than a predetermined angle from a position of the data in which the error occurs. The offset angle allows the device time to seek to the alternate area, read the alternate area and seek back to the area following the defective area within a single rotation of the disk.
    • 描述了一种磁盘装置和方法,用于重新分配使用替代数据区域来替换缺陷区域时最小化数据传输速率降低的数据区域(例如扇区)。 磁盘设备使用多个数据区,在每个数据区中分配备用区。 在发生错误的数据区域内的备用区域中分配一个备用区域(a),并且(b)在距发生错误的数据的位置偏移大于预定角度的角位置处。 偏移角允许设备时间寻找到交替区域,读取备用区域并在盘的单次旋转内追溯到缺陷区域之后的区域。