Invention Grant
US09384088B1 Double writing map table entries in a data storage system to guard against silent corruption
有权
在数据存储系统中双重写入映射表条目以防止静默损坏
- Patent Title: Double writing map table entries in a data storage system to guard against silent corruption
- Patent Title (中): 在数据存储系统中双重写入映射表条目以防止静默损坏
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Application No.: US14250212Application Date: 2014-04-10
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Publication No.: US09384088B1Publication Date: 2016-07-05
- Inventor: Justin Jones , Andrew J. Tomlin , Rodney N. Mullendore
- Applicant: Western Digital Technologies, Inc.
- Applicant Address: US CA Irvine US CA San Jose
- Assignee: Western Digital Technologies, Inc.,Skyera, LLC
- Current Assignee: Western Digital Technologies, Inc.,Skyera, LLC
- Current Assignee Address: US CA Irvine US CA San Jose
- Agency: Wilmer Cutler Pickering Hale and Dorr LLP
- Main IPC: G11C29/00
- IPC: G11C29/00 ; G06F11/10 ; G11C29/52
Abstract:
A method for writing data in a data storage device includes: writing data to a physical memory location in a non-volatile memory; writing, for a first time, to a location in a volatile memory corresponding to a logical address of the data, a physical address of the physical memory location of the non-volatile memory containing the data; and writing, for a second time, to the location in the volatile memory corresponding to the logical address of the data, the address of the physical memory location of the non-volatile memory containing the data. The physical address of the physical memory location is written with appended error detection code information, and the error detection code information is determined based on the logical address of the data.
Information query
