Method and device for improving the reliability of data storage in a hard disk comprising a plurality of platters
US10108495B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 10, 2013 |
| Grant date | Oct 23, 2018 |
| Priority date | — |
| Expiry date | Jan 9, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2211/1092
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for a controller of a hard disk including a plurality of platters, each platter including a data storage surface, the method including: obtaining data blocks, each block having to be or being stored on the hard disk, the number of blocks being less than that of surfaces of platters; calculating a redundancy data block based on each block, the number of redundancy data blocks added to the number of blocks being less than or equal to that of surfaces of platters; writing the redundancy data block on a platter surface, separate from the surfaces for storing each block; accessing data blocks corresponding to a data item to read from the hard disk and accessing a redundancy data block corresponding to the data item to read, each block accessed and each redundancy data block associated with the data item to read being accessed on a separate platter surface; and checking the integrity of the data item.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.