Disk drive framing write data with in-line mapping data during write operations
US8194340B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2010 |
| Grant date | Jun 5, 2012 |
| Priority date | — |
| Expiry date | Jun 21, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/2516
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A disk drive is disclosed comprising a head actuated over a disk having a plurality of tracks, wherein each track comprises a plurality of data sectors each assigned a physical block address (PBA). A first write command is received identifying a number of logical block addresses (LBAs) and write data. A header identifier is written to a first data sector that identifies a beginning of the first write command. The write data is written to a plurality of the data sectors and after writing the write data, a footer identifier is written to a second data sector that identifies the end of the first write command. The LBAs are written to at least one of the first data sector and the second data sector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.