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1. 发明申请

US20070220402A1 Auxiliary storage device and read/write method 审中-公开
标题翻译：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。

2. 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
标题翻译：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
公开(公告)号：US07607039B2
公开(公告)日：2009-10-20
申请号：US11388948
申请日：2006-03-24
申请人： Takeshi Shikama , Eiji Hagi , Mutsuya Hida , Hisatoshi Iwata
发明人： Takeshi Shikama , Eiji Hagi , Mutsuya Hida , Hisatoshi Iwata
IPC分类号： G06F11/00
CPC分类号： G11B20/1883 , G11B20/1816 , G11B2020/1893 , G11B2220/20 , G11B2220/2516
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.
摘要翻译：本发明的实施例通过在自动重新分配处理中从缺陷较大的扇区开始执行重新分配处理来提高写入磁盘的数据的安全性。根据本发明的一个实施例，在确定了根据读取命令从磁盘读出的每个数据扇区的可靠性之后，以可靠性增加的顺序对数据扇区进行重新分配处理。结果，在有限的时间内，可以优先地替换数据扇区，其中存在无法实现数据恢复的可能性高的数据扇区。这使得可以增加数据的安全性和HDD的可靠性。每个数据扇区的可靠性是根据由ECC校正的字节数确定的。

3. 发明申请

US20060218211A1 Data storage device with re-allocation processing 失效
标题翻译：数据存储设备重新分配处理
公开(公告)号：US20060218211A1
公开(公告)日：2006-09-28
申请号：US11388948
申请日：2006-03-24
申请人： Takeshi Shikama , Eiji Hagi , Mutsuya Hida , Hisatoshi Iwata
发明人： Takeshi Shikama , Eiji Hagi , Mutsuya Hida , Hisatoshi Iwata
IPC分类号： G06F17/30
CPC分类号： G11B20/1883 , G11B20/1816 , G11B2020/1893 , G11B2220/20 , G11B2220/2516
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.
摘要翻译：本发明的实施例通过在自动重新分配处理中从缺陷较大的扇区开始执行重新分配处理来提高写入磁盘的数据的安全性。根据本发明的一个实施例，在确定了根据读取命令从磁盘读出的每个数据扇区的可靠性之后，以可靠性增加的顺序对数据扇区进行重新分配处理。结果，在有限的时间内，可以优先地替换数据扇区，其中存在无法实现数据恢复的可能性高的数据扇区。这使得可以增加数据的安全性和HDD的可靠性。每个数据扇区的可靠性是根据由ECC校正的字节数确定的。

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