Invention Grant
US09588841B2 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奇偶校验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
- Patent Title: Using reliability information from multiple storage units and a parity storage unit to recover data for a failed one of the storage units
- Patent Title (中): 使用来自多个存储单元和奇偶校验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
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Application No.: US14499078Application Date: 2014-09-26
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Publication No.: US09588841B2Publication Date: 2017-03-07
- Inventor: Andre Lei , Scott Nelson , Zion S. Kwok , Ravi H. Motwani
- Applicant: INTEL CORPORATION
- Applicant Address: US CA Santa Clara
- Assignee: INTEL CORPORATION
- Current Assignee: INTEL CORPORATION
- Current Assignee Address: US CA Santa Clara
- Agency: Konrad Raynes Davda & Victor LLP
- Agent David W. Victor
- Main IPC: G06F11/10
- IPC: G06F11/10 ; G11C29/52 ; H03M13/11 ; G11C5/14
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.
Public/Granted literature
Information query
