Double writing map table entries in a data storage system to guard against silent corruption
US9384088B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 10, 2014 |
| Grant date | Jul 5, 2016 |
| Priority date | — |
| Expiry date | Apr 24, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/7201
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.