Magnetic disk device configured to write parity data that is based on data being written to a parity sector when no error is detected in writing the data being written
US10504550B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 2, 2018 |
| Grant date | Dec 10, 2019 |
| Priority date | — |
| Expiry date | Sep 2, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2020/1823
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic disk device includes a plurality of tracks and a controller. The controller receives write data to be written to a first sector of a track, generates a first data string based on the write data and a logical identifier for the first sector, attempts to cause the first data string to be written to the first sector, determines whether a write error has occurred while the first data string is written to the first sector, generates a second data string based at least in part on the first data string, and in response to determining that no write error has occurred while the first data string is written to the first sector, writes a parity data string that is based at least in part on the second data string to a second sector of the track that stores parity data for the track.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.