发明授权
US07607039B2 Data storage device with re-allocation processing which determines an order in which re-allocation processing is executed for defective sectors
失效
具有重新分配处理的数据存储装置，其确定对缺陷扇区执行重新分配处理的顺序
- 专利标题： Data storage device with re-allocation processing which determines an order in which re-allocation processing is executed for defective sectors
- 专利标题（中）： 具有重新分配处理的数据存储装置，其确定对缺陷扇区执行重新分配处理的顺序
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申请号： US11388948申请日： 2006-03-24
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公开(公告)号： US07607039B2公开(公告)日： 2009-10-20
- 发明人: Takeshi Shikama , Eiji Hagi , Mutsuya Hida , Hisatoshi Iwata
- 申请人： Takeshi Shikama , Eiji Hagi , Mutsuya Hida , Hisatoshi Iwata
- 申请人地址： NL Amsterdam
- 专利权人： Hitachi Global Storage Technologies Netherlands B.V.
- 当前专利权人： Hitachi Global Storage Technologies Netherlands B.V.
- 当前专利权人地址： NL Amsterdam
- 代理机构： Townsend and Townsend and Crew LLP
- 代理商 Patrick Duncan
- 优先权： JP2005-089407 20050325
- 主分类号： G06F11/00
- IPC分类号： G06F11/00
摘要：
Embodiments of the invention improve the security of data written on a magnetic disk by performing re-allocation processing starting from a sector whose defect is large in automatic re-allocation processing. According to one embodiment of the present invention, after the reliability of each of data sectors that have been read out from a magnetic disk according to a read command is determined, re-allocation processing on the data sectors is performed in the order of increasing reliability. As a result, within a limited period of time, it is possible to replace by priority a data sector where there is a high possibility that data recovery will be unable to be achieved. This makes it possible to increase the security of data and the reliability of the HDD. The reliability of each data sector is determined on the basis of the number of bytes corrected by ECC.
公开/授权文献
- US20060218211A1 Data storage device with re-allocation processing 公开/授权日：2006-09-28