Patent · US Active

Data storage device with selective write to a first storage media or a second storage media

US9036283B1 · kind B1 · utility

4Cited by

83References

32Claims

0Family size

Assignee

Western Digital Technologies, Inc. · US

Inventors

Chun Sei Tsai · Tustin, US
Choo-Bhin Ong · Lake Forest, US
Carl E. Barlow · Lake Forest, US
Cheng Fatt Yee · Subang Jaya, MY
Chandra M. Guda · San Jose, US

Key dates

Filing date	Mar 27, 2014
Grant date	May 19, 2015
Priority date	—
Expiry date	Mar 27, 2034

Classification

Technology area (CPC G)Physics
CPC primaryG11B5/6076
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A data storage device can include a magnetic rotating disk, a solid state memory, and a controller. The controller is configured to generate a first operational metric which is updated at a first frequency and a second operational metric which is updated at a second frequency different than the first frequency, receive a write command to write data to the magnetic rotating disk, and divert the write command to write data to the solid state memory instead of the magnetic rotating disk when at least one of the first operational metric and the second operational metric indicates that writing data to the magnetic rotating disk may be harmful to the magnetic rotating disk or result in data loss.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.