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:
Jun. 25, 2013
Filed:
Jun. 30, 2006
John T. Cardente, Milford, MA (US);
James T. Compton, Durham, NC (US);
Michael B. Evans, Upton, MA (US);
Stephen A. Fridella, Belmont, MA (US);
Uday K. Gupta, Westford, MA (US);
John T. Cardente, Milford, MA (US);
James T. Compton, Durham, NC (US);
Michael B. Evans, Upton, MA (US);
Stephen A. Fridella, Belmont, MA (US);
Uday K. Gupta, Westford, MA (US);
EMC Corporation, Hopkinton, MA (US);
Abstract
Methods, systems, and computer program products for managing quality of service for shared storage accessed by a plurality of nodes are disclosed. According to one method, at a node of a plurality of nodes sharing access to a first disk array, quality-of-service (QoS) metadata associated with a portion of the disk array are requested from a server, wherein the QoS metadata includes at least one performance criterion for the portion of the disk array. I/O performance is monitored for the portion of the disk array in response to receiving the QoS metadata. The monitored I/O performance is compared with the QoS metadata. Based upon the comparison of the monitored I/O performance with the QoS metadata, it is determined whether a QoS violation has occurred. In response to determining that a QoS violation has occurred, the server is requested to migrate data associated with the portion of the disk array.