USING RELIABILITY INFORMATION FROM MULTIPLE STORAGE UNITS AND A PARITY STORAGE UNIT TO RECOVER DATA FOR A FAILED ONE OF THE STORAGE UNITS
    3.
    发明申请
    USING RELIABILITY INFORMATION FROM MULTIPLE STORAGE UNITS AND A PARITY STORAGE UNIT TO RECOVER DATA FOR A FAILED ONE OF THE STORAGE UNITS 有权
    使用来自多个存储单元和存储单元的可靠性信息来恢复存储单元中的一个存储单元的数据

    公开(公告)号:US20160092300A1

    公开(公告)日:2016-03-31

    申请号:US14499078

    申请日:2014-09-26

    Abstract: Provided are a method, system, and apparatus using reliability information from multiple storage units and a parity storage unit to recover data for a failed one of the storage units. A decoding operation of the codeword is performed in each of the storage units comprising the data storage units other than the target data storage unit and the parity storage unit to produce reliability information. In response to the decoding operation failing for at least one additional failed storage unit comprising the data and/or parity storage units other than the target data storage unit that failed to decode, reliability information is obtained for the data portion of the at least one additional failed storage unit. The reliability information obtained from the storage units other than the target data storage unit is used to produce corrected data for the data unit in the target data storage unit.

    Abstract translation: 提供了使用来自多个存储单元的可靠性信息和奇偶校验存储单元来恢复存储单元中的一个故障存储单元的数据的方法,系统和装置。 在包括目标数据存储单元和奇偶校验存储单元以外的数据存储单元的每个存储单元中执行码字的解码操作,以产生可靠性信息。 响应于对于至少一个附加的故障存储单元的解码操作失败,所述至少一个附加故障存储单元包括除了解码失败的目标数据存储单元之外的数据和/或奇偶校验存储单元,对于至少一个附加的数据部分的数据部分获得可靠性信息 存储单元故障 从目标数据存储单元以外的存储单元获得的可靠性信息用于生成目标数据存储单元中的数据单元的校正数据。

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