Patent · US Active

Write reordering in a hybrid disk drive

US9747043B2 · kind B2 · utility

1Cited by

7References

27Claims

0Family size

Assignee

Kabushiki Kaisha Toshiba · JP

Inventors

Fernando A. Zayas · Loveland, US
Richard M. Ehrlich · Saratoga, US
Eric R. DUNN · Cupertino, US

Key dates

Filing date	Dec 1, 2015
Grant date	Aug 29, 2017
Priority date	—
Expiry date	Dec 1, 2035

Classification

Technology area (CPC G)Physics
CPC primaryG11B2220/45
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A hybrid drive and associated methods increase the rate at which data are transferred to a nonvolatile storage medium in the hybrid drive. By using a large nonvolatile solid state memory device as cache memory for a magnetic disk drive, a very large number of write commands can be cached and subsequently reordered and executed in an efficient manner. In addition, strategic selection and reordering of only a portion of the write commands stored in the nonvolatile solid state memory device increases efficiency of the reordering process.

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