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:
Oct. 28, 2014
Filed:
Sep. 28, 2012
Emc Corporation, Hopkinton, MA (US);
T. David Evans, Rutland, MA (US);
EMC Corporation, Hopkinton, MA (US);
Abstract
An improved technique for replacing storage elements in a redundant group of storage elements of a storage array dynamically selects a storage element type from among multiple candidates based on which storage element type produces the greatest service level of the redundant group. The technique includes selecting one of multiple storage element types using a random selection process that can be biased to favor the selection of certain storage element types over others. A storage element of the selected type is added to the redundant group. The selected storage element type is then rewarded based on the service level that results from adding the storage element of the selected type. The selection process is repeated, and a newly selected storage element type is put into use. Operation tends to converge on an optimal storage element type that maximizes the service level of the redundant group.