Hybrid drive garbage collecting a non-volatile semiconductor memory by migrating valid data to a disk
US8341339B1 · kind B1 · utility
204Cited by
33References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2010 |
| Grant date | Dec 25, 2012 |
| Priority date | — |
| Expiry date | Jul 1, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/7205
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A hybrid drive is disclosed comprising a non-volatile semiconductor memory (NVSM) comprising a plurality of blocks, and a head actuated over a disk comprising a plurality of tracks, each track comprising a plurality of data sectors. A garbage collection operation is executed on the NVSM by reading valid data from a first block of the NVSM, writing the valid data to the disk, and erasing the first block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.