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:
Jan. 05, 2016
Filed:
Jun. 28, 2012
Cesareo Contreras, Northridge, MA (US);
Helen Raizen, Jamaica Plain, MA (US);
Michael E. Bappe, Loveland, CO (US);
Xunce Zhou, Shrewsbury, MA (US);
Cesareo Contreras, Northridge, MA (US);
Helen Raizen, Jamaica Plain, MA (US);
Michael E. Bappe, Loveland, CO (US);
Xunce Zhou, Shrewsbury, MA (US);
EMC Corporation, Hopkinton, MA (US);
Abstract
An improved technique migrating data from a source LUN (logical unit) to a target LUN manages control I/O's in a manner that depends on the current state of data migration and on whether the control I/O's specify that reservation information for a LUN is to be set or queried. Control I/O's specifying reservation settings during the different states of migration are treated the same way as data WRITEs during those respective states, and control I/O's specifying reservation queries during different migration states are treated the same way as data READs during those respective states.