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:
Sep. 22, 2015
Filed:
Sep. 16, 2014
Emc Corporation, Hopkinton, MA (US);
Andrew W. Leung, Pleasanton, CA (US);
Kevin M. Greenan, Santa Cruz, CA (US);
Windsor W. Hsu, San Jose, CA (US);
EMC Corporation, Hopkinton, MA (US);
Abstract
A method and apparatus to control and manage a power state in a related set of storage devices is described. In one example a method includes, determining an idleness measure at the file system, the idleness measure indicating availability requirements of the device set, and setting an idle state based on the idleness measure. The method also includes receiving the idle state setting at the storage subsystem, determining whether the idle state setting is different from a current state of the device set, determining whether to change the idle state of the device set if the idle state setting is different from the current state of the device set, the determining being based on information about the device set. The method also includes commanding the device set to change the current idle state to correspond to the idle state setting based on determining whether to change the idle state.