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:
Nov. 05, 2013
Filed:
Apr. 16, 2012
Dale Howard Anderson, Tucson, AZ (US);
Philip Matthew Doatmas, Flagstaff, AZ (US);
Michael Robert Groseclose, Tucson, AZ (US);
Paul Anthony Jennas, Tucson, AZ (US);
Larry Juarez, Tucson, AZ (US);
Brian Sean Mccain, Mountain View, CA (US);
David Montgomery, Tucson, AZ (US);
Jason Lee Peipelman, Vail, AZ (US);
Joshua Marshall Rhoades, Tucson, AZ (US);
Todd Charles Sorenson, Tucson, AZ (US);
Dale Howard Anderson, Tucson, AZ (US);
Philip Matthew Doatmas, Flagstaff, AZ (US);
Michael Robert Groseclose, Tucson, AZ (US);
Paul Anthony Jennas, Tucson, AZ (US);
Larry Juarez, Tucson, AZ (US);
Brian Sean McCain, Mountain View, CA (US);
David Montgomery, Tucson, AZ (US);
Jason Lee Peipelman, Vail, AZ (US);
Joshua Marshall Rhoades, Tucson, AZ (US);
Todd Charles Sorenson, Tucson, AZ (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method for managing extents in a data storage system includes monitoring usage statistics for an extent residing on one or more powered-up storage devices. In the event the extent has not been accessed for specified period of time (as determined from the usage statistics), the method automatically compresses the extent and migrates the extent to an intermediate repository. Once the amount of data in the intermediate repository reaches a specified level, the method migrates the extent from the intermediate repository to one or more normally powered-down storage devices. If I/O is received for the extent while it resides in the normally powered-down storage devices or the intermediate repository, the method automatically migrates the extent from the normally powered-down storage devices or the intermediate repository to the normally powered-up storage devices. A corresponding apparatus and computer program product are also disclosed.