Non-volatile cache in disk drive emulation
US8024515B2 · kind B2 · utility
21Cited by
3References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2007 |
| Grant date | Sep 20, 2011 |
| Priority date | — |
| Expiry date | Jul 13, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for deferring media writes for emulation drives are provided. By deferring media writes using non-volatile storage, the performance penalty associated with RMW operations may be minimized. Deferring writes may allow the RMW operations to be done while the disk drive is idle. Further, deferring writes may also allow data blocks to be accumulated over time, allowing a full (4K) disk drive block size to be written with a simple write operation, thus making a RMW unnecessary.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.