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:
Jul. 15, 2014
Filed:
Nov. 15, 2011
Applicants:
Anant Baderdinni, Norcross, GA (US);
Gerald E. Smith, Boulder, CO (US);
Mark Ish, Sandy Springs, GA (US);
Inventors:
Anant Baderdinni, Norcross, GA (US);
Gerald E. Smith, Boulder, CO (US);
Mark Ish, Sandy Springs, GA (US);
Assignee:
LSI Corporation, San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01); G06F 3/06 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0646 (2013.01); G06F 3/0647 (2013.01); G06F 3/064 (2013.01);
Abstract
A data storage system having a slow tier and a fast tier maintains hot data on the fast tier by migrating data from the slow tier to reserve space on the fast tier as data becomes hot over time. The system maintains a reserve space table and performs a mass migration of data from the fast tier to the slow tier. Data migration is frequently unidirectional with data migrating from the slow to the fast tier, reducing overhead during normal operation.