Power loss mitigation for data storage device
US9870281B1 · kind B1 · utility
4Cited by
437References
30Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 20, 2015 |
| Grant date | Jan 16, 2018 |
| Priority date | — |
| Expiry date | Mar 20, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/012
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A Data Storage Device (DSD) includes a disk for storing data, a volatile memory for temporarily storing data to be written on the disk, and a Non-Volatile Solid-State Memory (NVSM) for storing data. Data is stored in the volatile memory in preparation for writing the data on the disk. The data is written from the volatile memory onto the disk, and it is determined whether the data written on the disk is qualified as written. In the event of an unexpected power loss, a portion of unqualified data that has not been qualified as written is transferred from the volatile memory to the NVSM.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.