Hybrid drive writing copy of data to disk when non-volatile semiconductor memory nears end of life
US8825977B1 · kind B1 · utility
99Cited by
35References
26Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 28, 2010 |
| Grant date | Sep 2, 2014 |
| Priority date | — |
| Expiry date | Jun 27, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/068
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A hybrid drive is disclosed comprising a head actuated over a disk, and a non-volatile semiconductor memory (NVSM). When a write command is received from a host that is mapped to the NVSM, the write command is serviced by writing data to the NVSM, and when a life remaining of the NVSM falls below a threshold, by also writing a copy of the data to the disk.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.