The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 19, 2015
Filed:
Mar. 27, 2014
Western Digital Technologies, Inc., Irvine, CA (US);
Chun Sei Tsai, Tustin, CA (US);
Choo-Bhin Ong, Foothill Ranch, CA (US);
Carl E. Barlow, Lake Forest, CA (US);
Cheng Fatt Yee, Subang Jaya, MY;
Chandra M. Guda, Irvine, CA (US);
Western Digital Technologies, Inc., Irvine, CA (US);
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.