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:
Feb. 09, 2016
Filed:
Apr. 16, 2015
Shingled magnetic record hard disk drive and method for creating a logical disk from physical tracks
Applicant:
Pmc-sierra Us, Inc., Sunnyvale, CA (US);
Inventor:
Dong Zhang, Beijing, CN;
Assignee:
PMC-Sierra US, Inc., Sunnyvale, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/596 (2006.01); G11B 20/12 (2006.01);
U.S. Cl.
CPC ...
G11B 20/1217 (2013.01); G11B 2020/1238 (2013.01);
Abstract
A system for writing data to overlapping physical tracks of a shingled magnetic record (SMR) hard disk drive (HDD) and a method for creating a logical disk from overlapping physical tracks of the SMR HDD. The system comprises a write header and a memory identifying the overlapping physical tracks which are accessible through the logical disk. The physical tracks are spaced from each other by at least the width of the write header. The method comprises mapping in a memory the logical disk to writeable tracks of the overlapping physical tracks, the writeable tracks spaced from each other by at least the width of the write header.