Method and apparatus for performing force unit access writes on a disk
US8990493B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2011 |
| Grant date | Mar 24, 2015 |
| Priority date | — |
| Expiry date | Jan 10, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/0866
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A disk drive comprising a rotatable disk, a head actuated over the disk, and a controller is disclosed. The controller is configured to write a first force unit access write data to the cache as part of the cache data, write the first force unit access write data and a first metadata corresponding to the first force unit access write data to the first location by using the head, transmit a first write complete status to a host, and maintain the first force unit access write data in the cache as part of the cache data. The controller is also configured to store write data as part of the cache data. Furthermore, the controller is configured to write the cache data to a third location, and a metadata corresponding to the cache data to the disk.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.